fuckflop

n. Something that is both fucked and a flop. Can be used to describe people or events.

That party was a total fuckflop.
He is a fuckflop.

Fuckflop

When a guy goes soft during sexual intercourse

"Babe, oh shit, I think I just fuckflopped…it's like a sad little slug…it's not helping that your mom's here either…"