Top definition
gross jello or jello thats older then you and your newish fridge
Ex:
Woman: Throw out that jelloco!!!!!

Man: But hunny its been in the fridge before we moved. Its practicly family. Every morning when i get milk in my cereal i have to say "hi loving uncle jelloco.
by woooooooh dude thats cool April 12, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug