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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!
oh my giddy aunt
dated A mild exclamation of surprise, alarm, dismay, annoyance, or exasperation. Primarily heard in UK, Ireland. Oh my giddy aunt, what a generous gift! Oh my giddy aunt! Don't scare me like that! A: "Oh my giddy aunt, what manner of rubbish are you watching?" B: "Haven't you seen this before? This is the latest reality TV sensation!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
from giddy-up to whoa
Rur. all the way from the beginning to the end. The road is paved from giddy-up to whoa. The play stinks. It is dull from giddy-up to whoa.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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.