to describe something so slippery and slick that it will slide off of any surface, or a person who is so untrustworthy and clearly greasy that they gleam in the sun.
"You heard about Donny snitching to the cops?"

"Yeah. That dude was always slicker than gopher guts on a garden gate."

"Real Talk"
by DJAJ Dubsac November 09, 2011
mugGet the Slicker than Gopher Guts on a Garden Gatemug.