crankshaft 

An important part of an Internal Combustion Engine. It serves the biggest role of an engine, converting Linear motion to Rotary motion. It takes the piston's up-and-down motion, pushing the connecting rod therefore turning the crankshaft. It contains counter-weights to balance the crankshaft so to reduce noise and vibration. It is also connected to the camshaft for timing purposes via a timing belt.

The crankshaft must turn without friction, therefore it has bearings on the case and bearings around the connecting rod. Oil must be supplied, in fact the crankshaft sits in the oil pan. There must be little play, but lateral play occurs, see Crankwalk.

On Manual Transmissions, the wheel with teeth at the end of the crankshaft is called the Flywheel. On Automatic Transmissions, it is called a Flex Plate.

My crankshaft is experiencing crankwalk!

crankshaft by Dave PreZzO February 8, 2007

crankshaft 

When a women gives her man a handjob using motor oil as the lubricant.

She crankshafted me at Jiffy Lube and now my dick is stained dark brown.

crankshaft by Alex Winston June 14, 2008

crankshaft 

The answer that one gives when asked a question that one either does not know or simply does not want to give an answer to. This response hails from the 'Churchill' car insurance advert in which their mascot dog (Named Churchill) is being asked questions. He gives the answer "CRANKSHAFT" before the lady asking the question has finished speaking.

Example 1:
A: "Do any of you know where my keys are?"
B: "CRANKSHAFT"

Example 2:
A: "What should I do in the event of a fire?"
B: "CRANKSHAFT"

crankshaft by Doodlebugz February 5, 2008

crankshaft 

YEAH that's right CRANKSHAFT!!
Someone who's being a real duche.
Someone who's getiing really annoying.

"You're being a real CRANKSHAFT man!"
"Oh man, here comes CRANKSHAFT."or..
"Hey man,let's ditch CRANKSHAFT over there."

crankshaft by see ya! May 22, 2003

crankshaft 

A heterosexual "sex move/position" similar to 69 except where the male, on the bottom, normally would eat out the pussy of the female, he instead inserts an eggbeater(wire wisk) into the pussy and proceeds to crank it to the delight of his partner.

Alan tried this great new move on his gf. He called it the "crankshaft."

crankshaft by give me thumbs up January 4, 2005

crankshaft 

a word formerly defining the sex move where you take a girl and put her on her head with her backside facing toward you. You proceed to screw her up the ass. At this point in time, you shove a funnel in the vagina and proceed to pour a quart of motor oil down it. After the motor oil can is empty, and your about to blow your load, you remove the funnel and spew in the vagina. Next you use your fingers like a dipstick and mix up the mixture in a "cranking" motion. Enjoy!

This version only allows the female to enjoy once, so the working definition had to be changed...see above

crankshaft by give me thumbs up January 5, 2005

Crankshaft Bowl 

A bowling tournament held by all the school districts in Ohio annually. It is most notably played between Centerville school district and Blue Valley school district. The winner gets the Edward R. Crankshaft memorial trophy. The trophy travels from year to year depending on who won it last. Centerville has won it the most times.

Ed: (jumping up and down in excitement) We won again! The Crankshaft Bowl is ours!! Take that Blue Valley schools!!

Roger: (running back and forth down the bowling lanes screaming) Centerville rocks! Centerville rocks!!

Elmer: (gets a real stern look on his face) Roger, shut up! So we won, big deal! I don't want to hear another word about it you hear me?

Roger: (is hurt by the sterness of Elmer's voice, begins to cry) I'm sorry, I just got excited.

Max: (really mad, blue steam coming out of his ears) You won't be so lucky next time, Crankshaft! Next time, Blue Valley is taking that trophy back to Ashtabula.

Ed: Easy, you'll win it someday, trust me. Just don't get so excited over it.

Steve: Yeah, take it easy. This is the Crankshaft Bowl. You're supposed to have fun with it.

Ed: (holding the trophy like a dumbell, crunching his bicep) Sweet victory! Burgandy and gold rule and navy and powder blue drool! (sets the trophy down and pumps his fist in the air three times)

Crankshaft Bowl by Dusty's Baby Powder April 7, 2011