Douglas Harper's Etymology Dictionary
Wiktionary
vb. To park a car next to a car already parked on the side of a street, obstructing traffic.
WordNet
v. park a vehicle alongside another
Usage examples of "double-park".
Sidewalks had widened, stretched by the muscular fingers of money, and the pour of office workers had curdled into a cyclonic multitude, well-dressed, cologned, and silently pouting because the limousines double-parked along each and every curb were not idling obediently for it.
It didn't surprise her when Webster simply double-parked and, ignoring the snooty glares from an elegant couple and their three equally stylish Afghan hounds, flipped on his On Duty light and joined her on the curb.
The Cadillac double-parked at the corner in front of the United Cigar Store.
While Beezer and the rest of the Thunder Five are arriving in the FLPD parking lot just off Sumner Street, Dale and Tom Lund and Bobby Dulac - bulky in their Kevlar vests - are double-parking in front of Lucky's.
Policemen are notorious for jaywalking, double-parking, rule-breaking in general.