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1.
taking it up the butt; anal sex


originated from taking it up the butt while watching shrek
Joe: The sex is getting boring, let's start shreking!


by jelkss October 04, 2008
 
2.
The act of replacing the background image on a friend/family member/co-worker/enemy's desktop with that of a small, tiled image of the main character of Universal and Dreamworks' Shrek movie series.

its a funny prank.

Bonus Points if you are able to change the screen saver to a slide show of shrek.
Additional Points if you can make every icon on the desktop a small shrek head.
Example 1-
man: Guess who just got a healthy dose of Shreking.

man B: Was it pete?

man: YOU KNOW IT

Example 2-
man: so i was just hanging out at pete's house. he showed me his new computer.

man B: did you shrek him?

man: big time

man B: sweet dude, lets watch iRobot, starring Will Smith.
by thesquidasaur August 01, 2010
 
3.
Shreking is taking a dump while simeltaneously watching one of the three shrek movies.
After i went shreking in my bathroom last night i had to move my tv back into the living room.
by YoungMacDre February 16, 2008
 
4.
Watching the movie Shrek while having oral sex
It was so awesome last night when i was shreking with my girl friend
by YoungMacDre February 15, 2008