look up any word, like wcw:
 
3.
Touching knee caps
Brandon: You know why she wears shorts right?
Arthur: No why?
Brandon: It's easier to get to 8th base that way.
Arthur: Her knees do look pretty sexy today.
by CooRiderOfTheNight January 08, 2011
 
1.
the act of having sexual intercourse with an entire farm and then the farmer
Oh man im so sore, i went to 8th base last night...and it went into the morning.
by Slick Bentley August 05, 2004
 
2.
having a three some with an alien
kevin and kassandra went to 8th base with E.T
by ue highschool December 22, 2009
 
4.
silly people :) there is no 8th base... unless you have a good imagination
Denis: "Dude, wat is the 8th base?"
Justin: "Dude...think about it..."
Denis: "I can't think of it."
Justin: "That's 'cause there is no 8th base dumbass!"
by Secret Scarlett June 07, 2010