toss a frog
Performing vigorous cunnilingus or analingus on a French woman (or man if it's analingus)
Bob: Hey man how'd it go with that French lady you met last night?
Joe: Let's just say I toss a frog.
Bob: whaaaaaat???
Joe: Yeah I tossed that frog all night man. She was squealing.
Joe: Let's just say I toss a frog.
Bob: whaaaaaat???
Joe: Yeah I tossed that frog all night man. She was squealing.