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The card-hobby decoder: forum slang from 5/24 to YMMV, and the terms that signal risk

US card forums and deal blogs write in shorthand. This decoder groups about 60 of the terms into rules, account actions, cards and currencies, airline codes and community talk, with a worked example and a flag for the slang that points at rule-breaking.

  • 4 min read
  • Intermediate
  • Checked October 6, 2026

Open any US card forum and you will read something like "DP: approved for CSP with the SUB after 4 years, HP, under 5/24, PC'd from CFU, YMMV." That sentence has real information in it, and no ordinary reader can parse it. This page decodes the terms, grouped by what they do, taken largely from Doctor of Credit's long abbreviations list.

Rules and numbers

5/24
Chase's rule: you are likely to be declined for many Chase cards if you opened five or more accounts, with any issuer, in the past 24 months. People write 8/24 to say how far over they are. See US issuer application rules.
2/30
Chase's pace limit: two approved cards in a 30-day window.
8/65
A reference to Citi's application limits.
6/24
Barclays' softer version of the same idea, over 24 months.
SUB
Sign-up bonus. See sign-up bonuses explained.
MSR
Minimum spend requirement. What you must spend to earn the SUB.
Lifetime language
Offer wording that limits a bonus to people who have not held the card before. See bonus eligibility.
Pop-up jail
The message on a Chase application page saying you are not eligible for the bonus.

Account actions

HP / SP
Hard pull and soft pull. A hard pull is an inquiry that can lower your score, a soft pull does not. See soft and hard inquiries.
PC
Product change. Converting a card to another product from the same issuer, often to drop an annual fee.
CLI
Credit limit increase.
AU
Authorized user. Someone added to your account.
AF
Annual fee. See annual fees and break-even.
FTF
Foreign transaction fee. See no-FTF cards.
Recon
Reconsideration. A call to ask the issuer to review a denial or a closure.
HUCA
Hang up, call again. Calling back when a representative will not help, hoping for a different one.
AAoA
Average age of accounts, a credit-history factor.
Adverse action
A denial or closure that the lender must explain. See your rights under ECOA.

Cards and currencies

CSP / CSR
Chase Sapphire Preferred and Reserve. (CSR can also mean a customer service rep.)
CFU / CFF
Chase Freedom Unlimited and Freedom Flex.
BCE / BCP
Blue Cash Everyday and Blue Cash Preferred, from Amex.
DC
Double Cash, Citi's flat 2% card. (Also debit card.)
UR
Chase Ultimate Rewards points.
MR
Amex Membership Rewards points.
TYP
Citi ThankYou points.
C1
Capital One.
CPP
Cents per point. See rewards math.
PYB
Pay yourself back. A redemption that offsets purchases.

Airlines, hotels and travel

AA / UA / DL / SW
American, United, Delta and Southwest.
AS / B6
Alaska and JetBlue.
BA / JL / KE / EK
British Airways, Japan Airlines, Korean Air and Emirates.
WoH / IHG / HH
World of Hyatt, IHG and Hilton Honors.
F / J / Y
First, business and economy cabins.
FN
Free night.
PP
Priority Pass, the lounge network. See credit card lounge access.
CP
Southwest Companion Pass.

Community talk

DP
Data point. One person's reported experience, not an official rule.
YMMV
Your mileage may vary. Results are not guaranteed.
OP
Original poster.
P1 / P2
Player one and player two. Two people in a household playing the same game.
OOS
Out of state. Often about banks' regional offers.
DDF / FT / MMS / OMAAT
Forums and blogs, such as Dan's Deals Forums, FlyerTalk, Million Mile Secrets and One Mile At A Time.

The slang that signals risk

Reading a real post

In plain English: a reader reports that they were approved for the Chase Sapphire Preferred and received the sign-up bonus four years after holding it before, with a hard pull. They had fewer than five new accounts in 24 months, and had converted a Freedom Unlimited into it. Results may differ for you. That one sentence uses five of the terms above, and it illustrates why the lifetime language is a risk and not a rule.

Questions people ask

Do I need to learn all of this?

No. Learn the first two groups, because they show up in offers and in advice about applications. The rest you can look up when you meet it.

Why is the slang so inconsistent?

Forums coin terms informally, so the same letters can mean different things. 'CSR' is Chase Sapphire Reserve in a card forum and a customer service representative in a support thread. Read the context.

Is the hobby the same as the best way to use a card?

No. Many posts describe edge cases. If you only want the best everyday card, start with the guide to the best cards by spending style.

Sources

Written from these pages and checked against them on October 6, 2026. Programs and rules change, so check the provider’s current terms before you decide.

General information, not financial, legal or travel advice. Your own card terms and the provider’s current rules always come first.

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