It can also be used as a word to explain someones Inexperienceness.
Also another word for "newbie". Simular to "noob" or "noobie"
Bill: Yeah! That guy was a knu-b.
Ted: Hey bill, Did you see that new guy in the club last night?
Bill: Yeah, he was a knu-b to the whole club scene. He was cool though.
-Talk to Michael, he knows how to knub.
2. Grab some cardstock, rope, and a power cord and lets knub'em.
3. Shhh! We don't them to know we're knubbing them tonight!
4. -Dude, how did you get in?
-We knubed them.