THE "hip" word for kissing and making out when I was a young teenager in the 70's.

To caress and kiss the neck passionately during making-out. Often, the neckee will end up with love bites.

1.When someone says something stupid and you slap the back of your neck. (Or vice versa )
2.When someone tries to diss you (or say you will mess up on something ) and they either fail or are wrong, you slap the back of their neck. (Or vice versa )
3.When someone violates or rejects you successfully, you then slap the back of your own neck.

to caress your clothed partner on and above the neck. (old defn, circa 1960)

to slap some one in the back of thier neck hard after they say somthing madd dumb.

to slap someone on the back of they neck for sayin or doin sumthin stupid

Lloyd Neck on long island
basically a place where it takes 20 min to reach civilization