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1. yuk
The name for the negative emotional response caused by being around certain people.
She is so yuk.
2. yuk
A 3rd class cadet at the United States Military Academy.
Stupid yuks are just plebes with priveleges.
3. Yuk
3rd Class Cadet, or sophomore, at West Point (USMA). As a yuk, a cadet is finally allowed to voice his/her opinion about life at the Academy. They come off as bitter. Hence, the name.
Yuk: I'm not a plebe, but no one takes me seriously, I still do a lot of the Corps' bitch work, I'm taking 20+ credit hours this semester, and my plebe just failed his APFT, meaning I'll be up doing pt with him every morning. FML

Also, see Yearling
4. yuk
a penis, especially a large one.
Hoe, I'm about to stick my yuk in yo cutty.
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