The name that is given to an individual that is being a complete moron, idiot or dumb-ass. Also lacking in common sense.
Bob: Man you see that Lakers game?
Derek: Yeah bro.
Bob: Man I love hockey.
Derek to Lindsey: Whaaaaatta knob.
by seizing November 14, 2009
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Jake: "So...How was it?"
Alyssa: "Jeremy?"
Jake: "Yeah, I saw you guys walk out the club together!"
Alyssa: "Oh....His knob was small."
Jake: "Dang..."
by I don't know.com March 9, 2018
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amenable to, a willing participant. eg i’ll fuck with that but pg

coined by fattyham in cdmx 2019
kfc? i’ll knob with that.”
by attyyayamhay April 28, 2019
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The act of getting a boner

Not to be confused with lob on or knob off
Watching that porn gave me such a knob on
by Tom P. Cock March 31, 2006
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Ian keeps astounding us with his ability to be a knob ..
by The marone ramone , July 4, 2013
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A game where a group of men secretly expose there individual penis' in a crowded room such as a bar and poke someone with it, at which point they shout to their friends, 'knob' s on'.
Knobs on, 5 points to me said Rich.
by Barry big bones December 24, 2016
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