When a woman's legs are so fat they become floppy and bouncy like Jello.
Mary ate so much McDonalds as a child she now has Jello Legs.
by bJt August 07, 2012
Top Definition
the state of shaking legs while or during a girl is getting fingered so nicely
"ya man i was fingering sierra and she got jello legs, she loved it"
by its pretty ppink January 10, 2015

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