Top definition
When you look at a video/picture/etc. of your fetish but only stare at it and blush instead of masturbating.
Memento had a mentogasm. His fetish was so strong that he didn't need to stimulate himself. He only had to look at it.
by pescetarianismisgood June 22, 2014
Get the mug
Get a mentogasm mug for your Uncle Bob.