on your neck 

to be have or to be better than someone or something.

anything better is on your neck

on your neck by Jeff May 19, 2004

I’m on your neck 

When somebody is doing questionable things and u have to point them out

My dude u had sex with that thot, I’m on your neck. It also works with head, forehead, chest and mouth.

I’m on your neck by Bigdickdon6935 May 14, 2019

Cop on your neck 

When one consumes both meth and fentanyl

"Ay yo, you wanna cop on your neck? This shit will fuck you up."

Cop on your neck by Lil Fentanyl August 19, 2020

HOT DICK ON THE BACK OF YOUR NECK 

H.D.O.T.B.O.Y.N
when someone is an extremely awkward situation

that would give said person a similar feeling as if a stranger had placed their penis on the back of their neck and for whatever reason could not react or make any attempt to remove the penis and just has to deal with it

on christmas i went to my best friends house and his grandmother continually exposed herself to me and no one els noticed...HOT DICK ON THE BACK OF YOUR NECK

HOT DICK ON THE BACK OF YOUR NECK by knife tit (J.P.A.C.) October 13, 2010