A style by nerds to try and act cool. They come in all types; mine craft, tech decks, Pokemon, and math.
"That kid with the unzipped sweatshirt has so much swag!"
"I know, let's go trade Pokemons with him!"
"I know, let's go trade Pokemons with him!"
by Hollywood12 October 19, 2015
A pregnant girl who hides her pregnancy under a sweatshirt until she reaches her third trimester and finally tell her parents.
My cousin had a sweatshirt baby, she did not tell her parents she was pregnant until her ninth month.
by Free Rein December 05, 2013