To wiggle is to get yourself out of something, to quickly move back and forth, or to fidget and squirm around.(verb)
The definition of a wiggle is a small fidgety movement.(noun)
The squirmy movements made by a little puppy who is trying to escape from a hug are an example of a wiggle.
See wiggle in Webster's New World College Dictionary
Origin: ME wigelen, prob. < MDu & MLowG wiggelen, freq. of wiggen, to move from side to side, akin to OE wegan, to move: for IE base see wag
See wiggle in American Heritage Dictionary 4
verb wig·gled, wig·gling, wig·gles verb, intransitive
Origin: Middle English wiglen
Origin: , probably from Middle Low German wiggelen, to totter; see wegh- in Indo-European roots.
Learn more about wiggle