look up any word, like the eiffel tower:
Skinny white girl wearing spandex-like pants who has an enormous butt that jiggles ridiculously. Note: having a jiggly biggly is not a good thing.
Look at that girl's jiggly biggly.

Watch out for that jiggly biggly, it might knock you over.

Here comes a jiggly biggly.
by kathleenann November 02, 2010
boobs that tend jiggle when you move, usually occurs with DD's and higher.
zamnnnnnn, she got some nice jiggly bigglys i wouldnt mind playing with those.
by mCbillions February 14, 2009