Neckin' it 

To give a man a blowjob while only moving the muscles in your neck, so as to gag yourself.

"Last night I was neckin' it with my boyfriend, and now I have tonselitis."

Neckin' it by Never again dad November 25, 2016

Giraffe necking it 

deepthroating it real good

Damn man, she is so good at giraffe necking it

Giraffe necking it by kmanchill May 30, 2017

necking it 

To hang yourself

Satti; Im gonna date Mark
Josh; Well, im necking it
Satti; Oh

necking it by Yureiboy September 3, 2016

Necking it 

In the south-eastern United States, it can mean, acting like a redneck.

“Neck”, being a shortened version of redneck.

Damn, you fellas are out there “necking it”, with the necks!

Necking it by Papi Durhamite May 18, 2023