An endearing term for that special female (or male) that is able to take a whole, endowed, engorged cock, all the way, balls deep for that wonderful throat filling blow job.
Braaaahhh you might want to ask out that chick at the end of the bar. Rumor has it she's a deep neck.

Carl hated his wife but she's worth keeping around cause she's a deep neck.

Dude your grandma is a deep neck.
by Eaton Holgoode February 21, 2017
Get a Deep Neck mug for your girlfriend Sarah.
A fucking awesome pop punk band. While keeping their sound fresh and relevant, they still feel like a throwback to bands like Sum 41 or New Found Glory.
Neck Deep's Gold Steps is a fucking classic.
by princessddalgi August 13, 2017
Get the Neck Deep neck gaiter and mug.
A pop punk band from Wrexham, UK that started in 2012. The members in the band include: Ben Barlow (Vocals), Fil Thorpe-Evans (Bass), Matt West (Guitar), Dani Washington (Drums) and Sam Bowden (Guitar) {Ex Member: Lloyd Roberts (Guitar)} They've Released Albums Wishful Thinking, Life's Not Out To Get You and The Peace and The Panic and EPs, Rain In July and A History of Bad Decisions.
Neck Deep: a pop punk band from Wrexham UK
by sleepyeyesxxx January 28, 2018
Get a neck deep mug for your sister Riley.
It's when you have your face buried in your girls pussy!
I had my tongue so far in her I was neck deep.
by neck deep March 26, 2011
Get a neck deep mug for your guy Abdul.
To be in a situation that there is no way out of.
To no longer have any control over your own life.
To be totally surrounded by sheeple. (stupid people)
'I am totally neck deep in sheep shit over this baby thing
I never should banged that silly bitch!"
by jsd96321 January 05, 2012
Get a neck deep in sheep shit mug for your father Bob.