Definitions by Macdaddyabiphelps

Gotta blast 

Used when you gotta nut (cum), or when you are going to masturbate

Family: "Where r u going?"
You:"Gotta blast!"

Gotta blast by Macdaddyabiphelps September 7, 2016

Gotta blast 

When you are going to masturbate. So horny you gotta take care of it.

Family: where r u going, come hang out with us

Me: Gotta blast!

Gotta blast by Macdaddyabiphelps August 18, 2016