a type of kick in which the legs are bent at the knees, extended outward, and then brought together forcefully.
Origin of frog kick
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a type of kick used in swimming, as in the breast stroke, in which the legs are simultaneously drawn towards the body and bent at the knees with the feet together, straightened out with the legs apart, and then brought together again quickly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012