The moment you hit your head into someone else's when the photographer says "Hey, put your heads together!" and both of you think you're funny and "pretend" to slam your head into theirs but actually do.
Person 1: "My boy friend and I were taking a cute fall pic, but we forbonked each other super hard!"
Person 2: "ouch!!"
Person 2: "ouch!!"
by InterestinglyEnough December 7, 2019
Get the forbonkmug.