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8.
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".
"I'm wearing my pink Plunge today."
by Curly October 08, 2004
 
9.
to stand over a woman, and then proceed to dip your smooth/rigid shaft into her oral cavity.
I wonder if that girl has experienced the gilad.
by JEREMY July 23, 2003