(n.) derived from the "stink palm" technique as seen in Mallrats. It is the most horrendous of pranks involving a tampoon being stuck up a guy's ass then removed and placed back in its wrapper. the girl who then uses it will experience a stink fouler than any stink palm. As this stink clings to her innards, it is extremely difficult to remove. Douching it will not remove the smell of ass.
Cindy got The Dirty Brian, and now her cooch smells like shit.
by Ricky Ricardo March 10, 2006
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The act of inserting a whole roll of Soothers cough sweets into your anus.

Sideways.
Hey wanna match me Dirty Brian this bitch?
by OhShitItsDavidBLAIN December 17, 2010
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A man who likes to give rim jobs to his work buddies to make his girlfriend jealous. He uses the butt secretions as mustache wax.
I gave him a dirty brian so i could style my stache'
by Dirttrack May 18, 2019
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The act of making eye contact with a surveillance camera whilst receiving oral.
He always takes it to a parking lot for the Dirty Brian
by DrGryzz01040 June 14, 2022
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During the act of heterosexual oral sex, a dog comes from behind and licks the female's vagina.
"I was having a good time with Natalia last night, but my dog decided to give her a Dirty Brian."
by Anita Blacman January 15, 2022
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A lovely man who is large and in charge, but in all the right places. May not be the cleanliest but he’s the realest man you’ll ever meet. With the biggest meat you’ve ever seen.
“Stop trying to take my man, just go get yourself a Dirty Brian!”

Ohhhh yeah he is such a dirty Brian, I bet he’s great in the sack!”
by QuinnyBb October 2, 2021
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A combination of "the Dirty Sanchez", a "Hot Lunch" and sometimes a "Snowball".
I can't wait for my gay boyfriend to give me "the Brian"....
by Brian's Daddy February 16, 2004
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