What is Check Your Neck?
1.
a phrase used as a warning to be on the look out for someone or a group of people whom are going to attack you. Used mainly among prisoners and street hoods to instill fear in a rival gang member or person whom they dislike.
best check your neck son
See
2.
A warning that you are acting suspiciously like a
You: "Supper tonight is o-possum with gravy and
freedom fries . Praise Jesus."
Me: "'Freedom fries?' 'o-possum?' Uh, I think you need to
check your neck there Bubba!"