A male's sexual failure in a certain sitiuation. Most likely due to the inability during that particular time to maintain an erection, or fully experience a sexual sitituation.
Yeah I kind failcocked last night, drank way to much.
(fa-cock-ta) Adj. 1.In a describing sense, to be deboed, nasty, retarded, broken,out of place or to sum it all up totally fucked up.
After Jon was done playing with his fake vagina he looked at it and saw how facocked it was, and with a scareful fit of glee he tossed it up into the air which there it stuck to the ceiling until he found a swiffer duster long enough to knock it down.