Top Definition
A prickly, fiery burning in the rectal cavity during the act of defecation, as though one were passing a cactus through the colon.
Remind me not to get the Inferno Burger next time we go out to eat; that gave me mad cactus ass.
by Dodger Of Zion November 16, 2010

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The prickly, greasy, "Cactus" feeling in which booty sweat and booboo residue remain in the anus for a lengthy amount of time.
Sometimes when I work out, I end up getting Cactus ass if I don't shower right after!
by Rat Brown May 04, 2011

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One who has prickly hairs growing out of his ass.
Damn go shave that cactus ass!
or
get the fuck outta my bed ya cactus ass muthafucka!
by patty bullet June 24, 2006

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The Urban Dictionary T-Shirt

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When you have diarrhea that's so bad you stand up and can feel your butthole burning. Similar to having a cactus shoved up your ass.
Damn, Steve ate so much Taco Bell he blew up the toilet and is stuck with cactus ass now.
via giphy
by ssmithsb19 August 04, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt