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verb: to make someone sitting in the back seat uncomfortably cold, by rolling down the front windows of the car. The perpetrator is usually a drunk fat-ass, and an inconsiderate boor, who is not interested in the comfort of fellow passengers. They can be easily identified by their robust neck meat. While the fatnecker is only interested in his own comfort, the person being fatnecked is usually too shy to ask the fatnecker to roll up his window, because the fatnecker is usually an older, burly, high school senior, and the victim, a skinny, waifish, freshman, who will have to earn the respect of his peers before dictating the climate of the vehicle..
"Man, that asshole fatnecked me all the way to Memphis last night. While he was in the front seat, sweating, and being loud and drunk, I was in the back seat, shivering, and too timid to ask him if he could roll up his window."
by Horace Blumpkin May 13, 2010
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2
if you have a fat neck, it means you are proud, showing off, or bragging non-verbally. This term was coined when a friend of ours would get arrogant in a debate and tuck his chin in thus fattening his neck.
How fat is your neck over the new job?

Do you need the doors widened to fit your fat neck through?

Is that new dress you bought a total neckk thickener?

My neck is so fat over kissing Vince Neil.
by Horns a plenty June 10, 2010
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3
somebody with a rather large neck,
somewhat of a dick cheese
oi fuck! look at driver wat a fat neck
by B August 04, 2003
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The vengeful act of crapping on a lover's chest while they sleep.

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4
Either a man that sells you pot, or the act of strangling a bitch.
If that bitch isn't there, I'm going to Fat Neck her.
by Monkey December 05, 2004
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5
In New York a Fat Neck Is An Illegal Alien, Mexican, South & Central American.
Them fat necks have no papers.

I hate how that fat neck drives.
by windycitybluez September 07, 2010
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The vengeful act of crapping on a lover's chest while they sleep.

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6
someone with a fatneck? self explanitory...fatnecks may dress uup as queefs for halloween.
look. its your m0ther. what a fatneck
by You_Fking_Wish. December 21, 2003
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7
A man, overweight with a bigger than normal neck. Sign of a dumbass
You see that guy there, that Dan Ferry, what a fat neck.
by Al Lazzerman December 10, 2003
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