make it with somebody

make it with (someone)

slang To engage in sexual activity, especially intercourse, with someone. Primarily heard in US. I heard Tommy's brother's friend made it with her when they were in summer camp! To be honest, you're the only person I've ever made it with.
See also: make

ˈmake it with somebody

(American English, slang) have sex with somebody
See also: make, somebody