V.Sticking the male penis into an upright vagina and going in a downward motion as to simulate a plunging motion
by Fat nigga JJ July 09, 2004

Messy and unkempt hair, more specifically, when one puts one's hair up in a ponytail the hair underneath said ponytail slackens and loosens, thus creating 'plunge'. Can be extended to any kind of loose, uncontrolled hair, such as is common when one takes off one's snug-fitting hat (e.g. beret, fisherman), and which is usually combed out to maintain an acceptable appearance.
1. "Look at the state of your hair, you've got so much plunge."
2. As soon as she took her hat off she had to sort out her plunge.
2. As soon as she took her hat off she had to sort out her plunge.
by cinmond July 25, 2008

by Rensh September 10, 2005

by JEREMY July 23, 2003

Thong. Dates back to 2004. When a group of girls go to buy a thong as a joke, they refer to it as "Taking the Plunge".
by Curly October 08, 2004

Phallic-looking ride at north Idaho's Silverwood theme park that locals refer to by many other impolite names.
by Disgruntled Idahoan August 05, 2007

by Koala Chaos March 06, 2017
