Definitions by Mark Wrighton, Ph. D.

Tivver 

Noun: trauma-induced recession of the already-flaccid penile truck into the body cavity, creating a vagina-like cylindrical cavern; occurs shortly after seeing disgusting specimen of human species, esp. the opposite gender. Derived from Trauma-Induced Vagina (TIV).

After seeing Francisco in a dress I had the world's worst tivver.

Tivver by Mark Wrighton, Ph. D. December 7, 2006