A camshaft. Automobile enthusiasts who speak of "cams" are usually describing aftermarket camshafts designed to provide greater flow of air/fuel mixture, and therefore more torque and horsepower, than the stock camshafts that come with most vehicles.

cam is a name for a very hot, very talented girl who is loved by many. she is a vixen and very fun loving but NOT a slut. basically, a cam is a very amazing girl who loves steady, longterm relationships

The act of masturbating with your significant other or random people by showing eachother over webcams

to accidentaly spill beer over somebody in a drunken state

the act of orally stimulating the female genitalia; "Munching the beaver," "macking box"

California slang Camaro

short for webcam.