an uncircumcised penis so unnaturally smooth and pasty to where it looks like a slug
"Have you seen PewDiePie's nudes yet? That fucking thing is a MONSTER of a slugcock."
A penis that has prematurely went flaccid and subsequently been removed from a juicy vagina that results in a slimy mass that resembles a slug.
I drank so much last night that I couldn’t finish with Mary. I ended up with that ol’ slugcock.