1 definition by slitfromeartoear

fackyap

a rude and quick way to tell someone to "shut the fuck up"

pronounced - fah kee yup

friends father: umm.. can you turn the music down?? im having a hard time concentrating on something that really doesnt fucking matter at all.

you: FACKYAP!!

friends father: excuse me??

you: nothing. we'll try to keep it down.

by slitfromeartoear March 7, 2006