Neckvidence 

N. (Nehk-vuh-dense)

Neckvidence is almost the same definition as a hickey, but in the case with "neckvidence", it has been obtained through hooking up in clandestine with a guy or girl who is not the significant other/spouse/etc. Also the term could be used if the person who has been given the neckvidence is young and needs to keep it covered from parents or guardians.

It is called "neckvidence" because it is a mixture of the word "neck" and "evidence".

Kelly had to see her boyfriend when she came home from the trip she took to Cancun where she had gotten neckvidence from another guy she met at the bar a night prior.

Neckvidence by Kyle Wilson July 18, 2009

nevidence 

The deletion of girlfriend sensitive images from a male’s phone. Specifically incriminating photos of naked girls. Evidence never to be seen again.

Lemme see that shower pic of shawty on your phone again Jessie.
Naw dawg, it’s nevidence now.

nevidence by Fignewt July 4, 2018

Neckligence 

An irresponsible or careless approach to the completion of a task, directly related to an excessive number of chins, which negatively impact the ability of the neck to function properly.

Yesterday this fat chick was backing out of a parking spot and almost hit me. She couldnt even turn her head, yo. Straight neckligence.

Neckligence by Captain Buzzard June 16, 2019