The term is most commonly referred to as,

(verb)

1: a physical act performed by the male partner, immediately preceding sexual intercourse in a rear-entry position.

2: To position one's self to sexually penetrate his partner, specifically in a back-entrance position, otherwise known as 'doggy-style' (common slang).

3: To prepare for copulation.

4: When a stallion (a male horse) positions itself on top of the female horse, just prior to breeding. This pre-penetration act is known as nucking.
In a 'doggy-style' position, the male is typically standing on his two legs and supporting himself with one of his arms either on the floor or the female's back. Meanwhile, he is stabilizing himself by adjusting his footing/balance, if you can picture that. The male is nucking, getting ready to penetrate the female. It is the most natural, primitive state of sexual intercourse between male and female. (i.e., as the beast nucked in preparation for copulation, the excruciating anticipation of the pleasure awaiting him caused his erection to jump and ooze with pre-ejaculate fluid.)
by Derell Johnson February 21, 2014
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A Baltimore slang that can mean whatever you want it to mean. Typically used to refer to your homies. Coined by the famous Baltimore barber Bippleyipsnip.
1. What’s up nuck?

2. Fuckalyootz jigguhluhbang gewtsmanaggin stupulahdoogetz nuck.

3. I got this nuck over from over there.
by manuck October 15, 2021
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A person who is careless about everything. Combines the words no and fuck.
Yo, that girl Jaura is such a nuck
by MrClean20 December 20, 2019
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To make up a bullshit {rumor to get back at another or serve them a punishment that is well or wrongly deserved.
Hey Jordan has been nucking Robert because he called him a little bitch.
by The epic bruh of the south January 21, 2019
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when you fuck a girl and get a nuke in call of duty.
Ryan just nucked Jess while his little brother watched from a distance.
by Navy Seal November 24, 2010
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Getting “nicotine fucked” or when you vape too much and get lightheaded or a slight high.
“Bro I’m so nucked right now. I’m hitting my juul and it’s fifty nic dog”
by Wompwompwomp May 22, 2019
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