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.
british slang for penis
"I could eat a knob at night" - Karl Pilkington
Amazingly cool-- in addition with other admirable traits.
He's super hot with knobs.
That concert was the best ever- with knobs.
Lady: "excuse me sir, your knob is sticking out."
Man: "don't flatter yourself woman. its hanging out."
Man 2: "call that a knob?"