by croftbrudercandycane June 11, 2006

(noun)
An unwanted erection provoked by engine vibration on a bus or coach.
A debilitating condition afflicting mostly, but not exclusively teenage boys.
An unwanted erection provoked by engine vibration on a bus or coach.
A debilitating condition afflicting mostly, but not exclusively teenage boys.
- "Press the bell, it's our stop next!"
"Oh fuck I can't stand up yet, I've got Coachman's knob. you'll have to wait. Sorry nan."
"Oh fuck I can't stand up yet, I've got Coachman's knob. you'll have to wait. Sorry nan."
by JingJangJong September 23, 2012

by Alex Oakley January 19, 2005

by pluribus January 7, 2011

to adjust any knob, dial, button, etc. in such a fashion that could impact the correct operation of any machine, device, or apparatus.(i.e. moving a knob too quickly or too often)
The pilot was knob dickin' stuff in the cockpit because he had too much extra time on his hands & broke the light switch off.
by gecko45 April 25, 2008

A large, unattractive female who is sexually aggressive and dominate toward her male companion, often in public places resulting in uncomfortable PDAs (public displays of affection).
Common traits of the Knob Shark include but not limited to poor hygiene, inept socially skills, colorful locks of hair (greens, blues, or purple) and dark clothing. A Knob Shark will often out weigh her male companion by 40% or more.
Common traits of the Knob Shark include but not limited to poor hygiene, inept socially skills, colorful locks of hair (greens, blues, or purple) and dark clothing. A Knob Shark will often out weigh her male companion by 40% or more.
Did you see the knob shark that Bob bought to the party? She practically had him pinned to the couch.
by gravymonkey February 8, 2009

by mj_oblio February 29, 2004
