9-volter
When going down on someone for oralsex and noticing they'e in bad need of a wash. You jump back like you've just put a battery on your tongue!
"It was stinking I was like, aaaaaaaaaaaaaargh 9-Volter!"
9 volter
An exceptionally tangy vagina twat
I went down on this bitch last night and damn was she a 9 volter!