swap notes
To share or exchange information (about someone or something) in a casual or informal manner. Opposing lawyers are always depicted as enemies on TV and in movies, but they are often friends outside of court who swap notes about other cases they're involved with. If you think that only guys swap notes on the people they've slept with, then you're just being naïve. Our exam is on Thursday, so Tom is coming over to swap notes and study with me.
swap notes (on someone or something)
to share information on someone or something. The two girls sat around swapping notes on guys they knew. The mechanics were swapping notes on rude customers they had dealt with in the last month.
swap notes
verbSee swap notes on someone or something