Top Definition
When a guy who regurally shaves his balls stops. The hairs start growing back and his balls look like a cactus plant.
Brian has a bad case of cacti-sac, he hasn't shaved his balls for a week. Now I look like I fell and scraped my chin.
by Efree September 26, 2006
1 more definition
6 Words related to cacti-sac
When a guy who regurally shaves his balls stops. The hairs start growing back and his balls look like a spikey cactus plant.
Brian has a bad case of cacti-sac, he hasn't shaved his balls for a week. I gave him a blowjob and now I look like I fell and scraped my chin.
by Efree September 27, 2006

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