Top definition
Grandkids that can be considered grownups, or close to it age or age & maturity.
Perhaps Grandkids are 18 & 19 and very immature regardless of their age would NOT be a Grandup.

My Grandups are so mature for their age, Maybe they have been emancipated minors for 4 or 5 years,
Young but maybe living on their own,have jobs, maybe good credit scores. Some able to pay their own way.
He's my Grandup and just turned 20 Friday.
I have 5 grandkids 2 being Grandups.
by JJCLC March 23, 2014
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