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.