A Jelly taco, is simply a vagina during it's menstral cycle. If a female were to be having her period, she and/or her vagina would be referred to as a Jelly Taco.
by BonelessWingsLax February 22, 2008
Joe:Yo man you wanna help me make a grape jelly taco?
Emily:Sure lets go to the store.
Joe:No man not that kind.
Emily:Oh okay ill go to the kitchen.
Emily:Sure lets go to the store.
Joe:No man not that kind.
Emily:Oh okay ill go to the kitchen.
by xXN0XSK0PEX69X420Xx November 20, 2013