second-neck 

penis with abnormally large girth, resembling ones neck.

She had to spread dat pussy open with rail-road spikes to make room for my second-neck.

second-neck by Gogz February 21, 2008

second hole from the back of your neck 

that'd be your VAGINA

Its like some small animal crawled up the second hole from the back of your neck and died, look at all the fuckin blood.

second hole from the back of your neck by the real LaURINE July 30, 2006

second hole from the back of the neck 

Another term for VAGINA

He bent her over and stuck it in the second hole from the back of the neck...

second hole from the back of the neck by Apifanny Sevier October 28, 2020