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To insert an object into the anus!
I shelved a cucumber into my butt and loved it
by funpac January 29, 2010
To discontinue all further communications with a person.
I cant beleive Hamish just did that.

by Cpt.West September 09, 2009
The moment when you've been without sexual contact for such a period of time that even simple, normally unsexual acts can result in an unwanted ejaculation.
Steve: Bad night man, i've been shelved for 2 months and jizzed my pants while watching dancing with the stars..
by BP12 July 17, 2012