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Hurry up! Move faster! The phrase originated as an instruction used when trying to get a horse to move faster. Come on, kids, giddy up—the school bus will be here any minute!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
exclam. Move faster! (Properly said to a horse to start it moving. Also said to people or things as a joke.) Giddy up, Charlie! It’s time to start moving.
See also: giddy
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.