Crulge
noun: The unsightly bulge appearing in the crotch of pants when one sits down. Looks like an erection, but isn't--just bunched loose fabric. Also known as a fauxner.
Sebastian was completely oblivious to the presence of an unsightly crulge in his jeans until Claire surreptitiously pointed it out to him.
"Dude! Smooth out your crulge before Anne comes in or she'll think you're a total creep!"
"Dude! Smooth out your crulge before Anne comes in or she'll think you're a total creep!"