Lying on one's back while a female sits on your face. Oral sex is then performed on her. The key is to be a black belt in tongue fu. Her secretions then become heavier and heavier until they fill your lungs causing asphyxiation
After a long night of the Dirty Jeff, I am having problems breathing, but my girlfriend is very happy.
by Connielingus April 16, 2007
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Jeff Smith of Houston, Texas.

Well-known across the country in the underground scenes of art and music.
Did you see Dirty Jeff last night?
by southfourth October 16, 2010
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A badass marine who's dick casted shadows over North Dakota
I thought it was a solar eclipse tonight, but no it must be dirty jeff in Wyoming.
by Goosera1 April 16, 2020
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Performing ATM (ass to mouth) on another guy then tongue kissing for one half of an hour, then before brushing his teeth, carrying on conversation with his grandma about politics.
I pulled a dirty jeff yesterday on easter morning at grandmas house
by Dirty jim and the boys May 25, 2019
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The act of putting one's own finger into their own rectal cavity and rubbing whatever comes out under one's own nose
Howdy, you can just call me Dirty Jeff. Care for a sniff?
by Julio Juarez February 18, 2023
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