It's a sarcastic way of saying:
1- How am I supposed to understand this ?
2- What is that supposed to mean ?
Especially when someone says something you don't simply understand or comprehend.
JAKE: Yo! Don, I met that Yam you saw last night and she was crazy!
DONALD: Yam ?
What do I eat that with?
JAKE: Oh! yam means a young hot girl.
DONALD: Oh!
When a person ragesor tries to be funny when he or she is roasted.
Person 1: You suck Person 2: THATS WHAT SHE SAID!
a phrase that you would use to turn an innocent sentence, sexual.
Example 1:
"why is it so big i dont think it'll even fit"
"thats what she said"
Example 2:
"it's so small LOL"
"thats what she said"
Example 3:
"if you go too hard it'll break"
"thats what she said"
a game with circles and squares that fight and kill
Person 1: have you played you are what you behold
Person 2: not yet
basically asking what you're doing
A: Aye what you got goin on?
B: Nothing tbh
When Mephiles Gamer pad is questioning Daniel about a video, gif, or image that has any language other than English written on it.
"Hey Daniel, What does this mean in spanish?; 'scoreggia di merda?'"
Daniel: "Thats italian."
"No it isn't, thats spanish."
an absolute poggers thing to say, often use when one of the boys says something crazy or abnormal
John: I fucked my sister
Cody: What Did You Sayyy