ALL meanings of double-nickel
dou·ble-nick·el
D d - noun double-nickel the national speed limit of 55 miles per hour as established in 1974 on U.S. highways. 1
- noun double-nickel (US slang)The national speed limit of 55 miles per hour introduced in the USA in 1974. 0
- noun double-nickel (US slang) The number 55 (by extension). 0