A form of sexual pleasure that people perform when they can't get enough sex. Some people do it several times a day. Others do it weekly or maybe even monthly.
Man, I can't get enough sex, I think I'll go masturbate.
Dude, I'm bored, I'm gonna go masturbate.
a circular shaped disk or frame that revolves on an axis, as on or in vehicles or machinery
The wheels on the bus go round and round...
The steering wheel controls the direction of travel.
A wheelie is when the driver rides on the rear wheel(s) of a vehicle.