a large, hairy crease on the back of a man's neck.
Man, the supervisor's neck vagina was so distracting at the meeting that we all got together and bought him a pair of panties for his head.
by Jo Jo Wordsmith December 09, 2011
The back of a woman’s neck that when rubbed or fingered like a vagina causes pleasure. The neck vagina is often massaged during kissing or as a precursor to sexual activities.
Paul played with Kim’s neck vagina in an effort to get farther into Kim’s pants. Kim’s neck vagina felt good when Paul rubbed it.
by freznel January 24, 2009