1.The lasting negative effects that heavy cannabis use has on the cognitive ability of users. Symptoms include switching on your computer to come on the internet only to completely fucking forget what it was you were going to look up, and then making an urban dictionary entry instead.

2.Cannabis which has started to rot due to not being kept in adequate conditions.
1. I gotta stop smoking, this pot rot got me forgetting my own name.

2.Tyler's entire stash sadly succumbed to pot rot.
by robfest August 25, 2010
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When you're friend is walking like he's holding eggs between his legs and the smell is rank. It almost smells like a pot rot.
"Damn, Andrew looks like he has pot rot in his ass!"
"Was Andrew working for the pony express, or does he just have a bad case of pot rot?"
by kkbb December 4, 2019
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When a mans gut overhangs and in the folds of skin underneath a cheesy smelling substance accumalates
Wow Damian has put some timber on I bet he’s got bad pot rot under his new pot belly
by Thlegend October 14, 2020
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