Sidehack

A BMX bike with a sidecar-like device attached to the frame of the bicycle. This makes BMX bike riding a shared experience. The person that stands in the sidecar is called a monkey while the person steering the bike is called the pilot. This concept was introduced on Rob Dyrdek's Fantasy Factory in the episode "Trust Your Pilot, Respect Your Monkey".

A stealth form of male masturbation performed while wearing pants, typically in a semi-public setting such as a movie theater or while driving. In order to sidehack a man must first position his penis along his inner thigh. He will them stimulate the penis by rubbing or stroking his inside thigh through his pants.