Usually used in a joking manner about sexual intercourse between a person and another person's mother
Person 1: "What have you been doing lately?"
Person 2: "Your mom."
What the fuck are you doing here you piece of shit! Go back to elementary for goodness sake. I will not give you the fucking definition of your mom bitch! Go tell your mom the definition of your mom you lazy piece of shit.
A terrible joke, mostly used playfully to insult ya bro. Make sure to not use it on your biological brother, or yyou've shot yourself in the foot.
Dude: your mom gay
Guy: i am your child.
Dude's Wife: I'M GOING TO FUCKING-
A living organism that everyone likes "doing".
Eg: Person 1: Hi!!!
Person 2: Your mom
A very lame phrase used by degenerates when they can't respond to a valid point made by someone. Mostly used by cringe 9 year olds in Roblox
Guy 1: Why do you have to make deez nuts jokes they are staler than 100 year old milk.
Cringe shitass: because your mom
Guy 1: :moyai: