Top Definition
A vagina that is perceived to be dirty, diseased, or in some manner toxic. Also sometimes referred to as the Caustic Cleft.
When a guy hooks up with the last remaining (and often disgusting) woman in the bar he will often tell his friends, "I am going deep into the Caustic Valley tonight boys."
by 2k3bandit December 23, 2013

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×