nine-volter 

A girl so fit that you'd go down on her first thing on a one-nighter regardless of her having a shower or not or how many piss-stops she's had during the night while out clubbing/on the lash. Derived from the same burning reaction you get from placing a nine volt battery on your tongue as what you get from going down on an unwashed beaver.

Look at her over there, is she a nine-volter or what?

(other possible uses are upping the voltage to say a 24volter if she's way up there, or likening her to a car battery)

nine-volter by savageYfronts October 22, 2006

Nine-Volter 

A person with questionable personal hygiene.

"That bird from last night was a bit of a nine-volter"
"Be fair- she HAD been dancing all night"

Nine-Volter by Azenath69 December 19, 2021

Ninevolter 

Ninevolter..A pussy or vagina that, when subjected to oral stimulation, gives the licker a belt similar to that as if he or she had passed their tongue across a nine volt battery.

Hell's teeth she was rank! I dived in last night and got a ninevolter!

Ninevolter by Mr Henderson Smith February 13, 2009