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".
Hey man wanna go sidehacking tomorrow?
by Mighty_Arrow October 14, 2010
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