Definitions by Anonymous Love Of Him

thwash 

A sexual movement while vomiting during intercourse

We thwashed when we 69-ed

thwash by Anonymous Love Of Him July 31, 2016

Thwash 

Sexual movement while vomiting during intercourse

"Tina thwash-ed last night when we 69-ed!"

Thwash by Anonymous Love Of Him July 30, 2016