Joining a group of 2 or more people having sex in fear of FOMO.
Did you hear about last night? There was a dirty jacobe. Apparently a guy showed up and turned it into an orgy because he didn't want to be left out.
by randomuser23792389 March 22, 2021
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Sticking your tongue down the throat of a girl, whilst her ex is 2 metres away
You pulled a dirty Jacob last night and then ran off with her
by King82 June 19, 2020
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A man gives his girl a dirty sanchez in a walrus stache shape and after finishing blows his load on the womans face.
Yeah last night my girl let me give her the dirty jacob. It was a good night.
by pimpdazzle July 13, 2009
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a half man half wolf who battles vampires and tries to get with underage girls all the while he secretly is masterbating to his memory of Edward with no shirt on.
Dude you know that guy from twilight?

Who Jacob?

Yah he is such a Dirty Jacob! I even cought him fondling my nutsack last night.
by JuniorBaconCheeseBelly July 12, 2010
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When two males 69 eating each other out with the audience of the family pets in the room to increase arousal.
"Man, the dog really wanted to escape the room when we were doing a Dirty Jacob. I was such a turn on."
by NaniNeeks September 05, 2019
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The process of having a can of monster shoved inside your ass by your best friends after him catching you trying it by yourself
"hey wanna try a dirty karl jacobs?"
"leave me alone get the fuck away from me never speak again."
by KARLS_MONSTER_CAN September 04, 2021
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