- Wag is defined as to move a body part quickly back and forth or up and down over and over again.
- An example of wag is what a dog's tail does when the dog is happy or excited.
- An example of wag is to move your tongue rapidly when talking.
A dog will wag his tail when happy.
wag definition by Webster's New World
- to cause (something fastened or held at one end) to move rapidly and repeatedly back and forth, from side to side, or up and down: the dog wagged his tail
- to shake (a finger) or nod (the head), as in summoning, reproving, etc.
- to move (the tongue) in talking, esp. in idle or malicious gossip
Origin: Middle English waggen, probably ; from Old Norse vaga, to move back and forth, rock, akin to Old English wagian, to shake, totter ; from Indo-European base an unverified form weĝh-, to move from source Classical Latin vehere, to carry
- to move rapidly and repeatedly back and forth, from side to side, or up and down: said as of a part of the body
- to keep moving in talk, esp. in idle or malicious gossip: said of the tongue
- to walk or move with a swaying motion; waddle
- wagger noun
Origin: probably short for obsolete waghalter, a gallows bird, applied to a joker, rogue (; from uncertain or unknown; perhaps wag plush halter)
wag definition by American Heritage Dictionary
verb wagged wagged, wag·ging, wags verb, intransitive
- To move briskly and repeatedly from side to side, to and fro, or up and down.
- To move rapidly in talking. Used of the tongue.
- To walk with a clumsy sway; waddle.
- Archaic To be on one's way; depart.
Origin: Middle English waggen; see wegh- in Indo-European roots.
- wagˈger noun
Origin: Perhaps from wag1.