quits
adjective /kwɪts/
  /kwɪts/
Word Originlate 15th cent. (in the sense ‘freed from a liability or debt’): perhaps a colloquial abbreviation of medieval Latin quittus, from Latin quietus, used as a receipt (see quietus).
Idioms Idioms 
be quits (with somebody) 
- (informal) when two people are quits, they do not owe each other anything, especially money- I'll give you £5 and then we're quits.
 
call it quits (informal)
- to agree to end a contest, argument, etc. because both sides seem equalTopics Discussion and agreementc2                                     
- to decide to stop doing something
double or quits (British English) 
(North American English double or nothing)
- (in gambling) a risk in which you could win twice the amount you pay, or you could lose all your money