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4.
to extrapolate is a method of sex which is so crazy that some consider it the hardest sex position to master, but once mastered it is the most enjoyable.
boy1: "me and girl totally extrapolated sooo hard this weekend... saturday and sunday!"
boy2: "i feel like dropping an f-bomb"
boy1: "i think i did."
by atrax August 03, 2005
 
1.
To explain.
P: "This girl is a whore."
D: "Could you extrapolate on that?"
by Cleaningisawasteoflife December 23, 2009
 
2.
To bend your leg, making an improvised vagina with the inside of your knee, then you or a partner insert one or more fingers and commence finger-knee intercourse.
I was bored in class today, so I extrapolated myself.

My girlfriend extrapolated me all night long, because we don't believe in sex before marriage.
by spencer93 April 24, 2010
 
3.
To release your manly(or womanly) fluids to gain pleasure.
Finally, near the end I extrapolated all over the baby jesus because I pulled out and realized we were still in church.
by Rage February 23, 2005