from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A swimming kick used mainly in butterfly in which the legs are extended straight back and moved up and down in unison with a slight bend in the knees on the upward movement.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a swimming kick; an up and down kick of the feet together
Sorry, no etymologies found.