Putting your testicles over your woman's eyes, and your penis over her nose, gonzo, with an added bonus of farting on her forehead, leaving a poop mark.
I gave my girlfriend the keith, and she is no longer my girlfriend.
by K-Nastee October 07, 2011
Its where you lick the rims of a womans vagaina, or pussy, and she gets sweaty and gives you tit milk.
Hey mom wanna do "The Keith"?
by Al Gore July 17, 2002
to eat out a female with chunks of food stuck in your braces
Kenny was doing the Keith to Maia and Maia had some leftovers in her vagina the next morning.
by Chris & Maia July 13, 2002