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1.
When someone sticks their dick up someone's ass.
Oh my, that man got reared by that llama over there.
by The one named K3N April 10, 2006
 
2.
Originally, to bring up or raise a child (Stewart was reared by his grandmother). Now: to be taught a lesson in an unforgiving manner in any activity, usually a sport or a video game. Essentially a synonym for "schooled", rear also acts as a double entendre, hinting that the schoolee was done in the butt by the schooler-- thus, the lesson was a costly and painful one.
Shit, man! We reared those 14-year-olds in ball today! I can see why they didn't make the JV squad!
by Neil Savage May 04, 2008
 
3.
When someone has a big ass
Yo! That chick is reared.
by Simply Sam, Nothin more January 05, 2008