The worst insult ever known to mankind. It means that someone is not only a prick, they're the whole cactus. This extremely offensive word was believed to have originated in the Medieval ages or before that. It is the worst insult ever. 'ur mom a cactus' is even worse than 'ur mom gay', 'ur papa a nazi', 'ur gran gran a trans man', 'ur dad a lesbian', 'ur cousin a muffin' and the N word. It is not a bad as 'ur mom trans' and 'ur papi nazi'. This word is also worse than 'Karen'.
Karen: Why did you block me? Ur mom gay.

Donna: Ur mom a cactus.

Karen: That hurts.

Donna: Just avoid ur mom and you'll be fine.

Karen: I'm gay.

Donna: Yes.
by Pigeon girl June 22, 2020
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