1
general::
Phrase(s): kiss and make up
1. Lit. [for two people who have been arguing] to kiss each other and apologize. • John apologized to his wife for disagreeing with her, and they finally kissed and made up. 2. Fig. to forgive someone and be friends again. • They were very angry, but in the end they kissed and made up. • I’m sorry. Let’s kiss and make up.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Settle one's differences, reconcile, as in The two friends decided to kiss and make up. This colloquial expression has largely replaced kiss and be friends, dating from the 1400s. [Mid-1900s]
American Heritage Idioms