1. A phrase used as a formal declaration of defeat. For example: "Kenneth replied 'yo mama' when he realized he could not counter his opponent's point."

2. The principle part of a "Yo Mama" joke, usually entailing a description of your mother being so "something" that "something" occurred as a result.

"yo moma" is something you say in front of every sentence that some1 says just to piss then off

They call yo mama "The Squirrel" cuz she always got nuts in her mouth!

Slang for "your mom". A nice insult! Talking about your mom is really insulting.

the first two words of some of the best and worst jokes of all time

Literally means your mother. It is sometimes used for mockery or insults. For example:

the lamest roast ever that 12 year olds on discord or fortnite use to try and insult someone. But a infamous way of jokes