the term used when u engage in cybersex with someone you think is something like an 18 year old woman or something like that, but turns out to be a 14 year old boy, for example. usually, the the one who is interfakefucked never learns the truth. it usually happens in chat rooms.
julie: "callme920 says he is a 17 year old stud. should i go for it."
sydney: "yes. go for it, gal!"
callme920 and julie have cybersex.
joe: "man this girl is easy to fool."
steve: "i know u interfakefucked her for an hour! high five!"
joe is really a 14 year old horny boy. julie is 17. she never learns the truth.