The act of pooping on a crab then jamming it in your vagina while your partner sprinkles old bay in your belly button to later lick it out
by Kdogg! May 11, 2017
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When someone who thinks they can fix somthing bur everyone know he / she can't.

"Fucking mud crab , everything he touches turns to shit"
"Fucking mud crab , everything he touches turns to shit"
by Bigboybubblebath March 4, 2022
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Pubic lice that have moved their way from from the genitals, through the mangroves of a man or woman’s gooch, only to take up residency in the general vicinity of one’s colon, hence the mud.
Hey mate I’ll be back in a minute my mud crabs are giving me grief
by UnkySnit10 October 13, 2022
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When a partner inserts their thumb into the Anus of a women along with the other four fingers into the vagina pinching down in a crab like motion.
Connor gave Kaleigh the mud crab in order to drag her back into his sex dungeon
by Brickcuc May 14, 2022
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