Definitions by MajesticFox666

That's the grandma 

That's the grandma, means "it is what it is" or "that's awesome!"

Can be used when somebody announces something in any context and you don't know what to respond say " That's the grandma."

"Have you been to Warp Tour?"
"Yeah man! That's the grandma!"

That's the grandma by MajesticFox666 October 16, 2018