Top Definition
The product of a porn actress's ability to emit loud vocalizations seeming to require great effort without moving their lips or otherwise appearing to engage their vocal cords.
That ventrilogasm was so loud the neighbors called 911 to report an assault.
by AffirmThis October 19, 2011

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.

×