look up any word, like ratchet:

2 definitions by Lizbo

 
1.
A word meant to have meant "fantisize", but the person is so lost in a brain gasm and illiteracy that it came out wrong.
"Hey, when are you going to hook me up with your hot sister? So I can stop sanisize(ing)"
by Lizbo June 12, 2008
4 0
 
2.
An unintentional orgasm without any real stimulation so it's all in your mind.
"Oh emm gee. I totally just had a brain gasm while laying down infront of the fan watching t.v."
by Lizbo June 12, 2008
2 6