Physically - or emotionally - existing on a chain and in control of another person or entity. Commonly used to describe the emotional state of a sub in a dominatrix/femdom relationship.
Ever since Ryan started hanging out with Paul, he has been onchain - I hear he hasn’t had an orgasm in months.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.