look up any word, like fellated:
 
1.
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
 
2.
The word is used in the workplace to refer to too many tasks given with too little time to accomplish them.
Paperworks are neckdeep, I may not be able to finish it on time.
by hardpen October 03, 2010