Definitions by Eurasmus B. Black

snatchbrain 

The female analogue of a dickbrain. In other words, her actions aren't rational and decisions are totally driven by getting laid. This can refer either to the entire female or just her genitals.

Becky won't leave that bartender alone, her snatchbrain is looking for a good time!

snatchbrain by Eurasmus B. Black April 19, 2016