I. ˈwa-gəl verb
( wag·gled ; wag·gling -g(ə-)liŋ)
Etymology: frequentative of wag (I)
Date: 1588
intransitive verb
: to reel, sway, or move from side to side : wag
transitive verb
: to move frequently one way and the other : wag
• wag·gly -g(ə-)lē adjective
II. noun
Date: circa 1866
1. : an instance of waggling : a jerky motion back and forth or up and down
2. : a preliminary swinging of a golf club head back and forth over the ball before the swing