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When you tuck your dick into your butt crack all day before a blowjob, and then yell “SWAMP COCK” and then smack her nose with your dong until she smells it
“Hey man I heard you got head from some hot girl

“I was about to, but then I hit her with that swamp cock and then she threw up”
by SwampyBoi April 01, 2019
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The unfortunate condition in which the penis has become so inflamed by the toxins of a woman's swamp pussy that the cock itself begins to change colors and ferment. The horrible odor emanated by the rotting flesh is enough to be noticed from a great distance.
Man: Dang, I got some mad swamp cock. I don't think I can make it to that job interview.
Woman: Sorry about that...
by ColonPounder December 28, 2009
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when you have sexualintercourse with a girl/man that's has swamp ass causing you to have mushrooms grow on your cock.
I had sex with my girl last night we had Shrek cosplay and it went Great because she had a swampy ass in turn giving me swamp cock and a few mushrooms to grow down there.
by swag_vape_lord December 29, 2016
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