Enter a clue or pattern or both:
The Clue
Slip in a pot (3 letter answer)
The Answer
IOU
Tags
Notes
The answer IOU is seen frequently, appearing about once every 90 puzzles.
Related Clues
Chit
Marker
Note
Promise
Beholden letters
Bill, of a sort
Cash alternative
Chit in a pot
Debt acknowledgment
Debt chit
Debtor's letters
Debtor's note
Debtor's promise
Gambler's note
Gambling note
Letters of credit
Marker letters
Payment promise
Promise to pay
Promissory note
Debt note
Sign of debt
Acknowledgment of debt, in brief
Atl. City marker
Marker in a poker pot
Money substitute, for short
Note from a busted person
Paper in a poker pot
Part of a poker pot
Promise in a poker pot
Letters often followed by a number
Note in a poker game, e.g.
Definition
IOU as a noun:
1. an informal debt instrument; representing `I owe you'