When you cum in a girls nose and it hits her brain
Guy 1: So how did the sex go?
Guy 2: Good, I hit her with a brain blast
8👍 8👎
When you put your dick up a girls nose all the way to her brain, and then you nut on her brain aka a brain blast
Wayne says " hey, james your girl wanted it up the nose, so i gave her a brain blast last night"
31👍 90👎
To get your brain blasted by sound waves emiting from your headphones/ earphones.
Ugh! That scary pop-up gave me a brain blast!
16👍 54👎
having many intricate, ornate, and intelligent thoughts before climaxing
"Boy that was some brain blast. The thoughts I have when I ejaculate, I tell you what."