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the practice of the insertion of the male genitalia into the anal region. usually the anal region of the same gender.

"the only thing i got outta prison is some butt lovin."
by buttlover101 August 17, 2006
1) A phrase used to refer to an act ov anal sex/buttsex.
Last night I had some good butt lovin!
by incipitsathanas March 16, 2008