1 definition by Mr.Slippery
When a man's "penguin" becomes so slippery due to liquids-oil, water, semen, saliva, etc.- that females have difficulty operating upon the phallus.
"Ah man dude, I had such a Slippery Penguin last Night that that bitch slipped off like twenty times"
by Mr.Slippery April 30, 2010