Someone who enjoys the fresh but musky smell of a nice ass. In sex, be it with a guy or a girl, they will always love the ass and get their face as close as possible.
Hey, get over here, go down on me and stop being a dirty butt smeller.
by TheVegasCasanova June 5, 2015
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One who secretly sniffs buttholes
Jesse: Michael are you smelling my butthole?

Michael: I thought you told me to.

Jesse: You're a fucking butt hole smeller.

Michael: oh
by Dr. Gluteus Maximous February 21, 2009
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