"Did you see dem Slunchies last night slut droppin?"
"That prozzy on the corner is that Slunchy! "
"I hate kate the most out of everyone, I would definitely go as far as calling her Slunchy"
generally, a tits-awesome guy or lady-female (if you're freaky)
used as a nickname for guys, but an adjective for the ladies.
that girl over there looks slunchy to me, let's see what she's up to.