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The swamp log is a sexual act that begins when a man has extremely rough anal sex with a woman until she poops on his erect penis, at which point the man withdraws his penis from the woman’s anus, grabs the woman by the hair, turns her around and jams his shit-covered penis deep enough down her throat to make her vomit onto it. When the man’s penis is covered in poop and vomit at the same time, the swamp log is complete.
Tyree: Man, I hit that thick b***h Shondra with tha SWAMP LOG last night!

Derrick: Man, that shit is nasty. Did you clean that all up?

Tyree: Nah, fam. I made her clean that all up. Shit was stinky as hell!

Derrick: Bet.

Michael K: Hey, I made that up! Do I get some credit?

Tyree: Nah.
by derrickJones441 February 22, 2019
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2
When you insert your penis into a girls (or guys) asshole, and leave it inserted for an extended period of time (10-15 minutes for example), until your penis collects a film of feces, creating the effect of a swampy log.
Dude... Jake just gave Scotts girlfriend the swamp log, his dick is sooo nasty.
by Cosmic Ralph June 24, 2009
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3
swamp log is the term for pulling your penis out of a vagina and sticking it directly in a girls vagina or mouth.
I pulled my penis out of a girls vagina and put it directly in her vagina.I swamp logged her.

I pulled my penis out of a girls vagina and stuck it directly in her mouth. i swamp logged her.
by the swamp logger November 12, 2010
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4
when you take a dump and your turd is covered with stringy, mossy-looking stuff, a la after you've eaten a lot of lettuce
A took a dump and squeaked out a swamp log the other day.
by waca waca 22 November 24, 2013
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