by kanyesbutthole October 15, 2019

by gabehare123 April 01, 2015

You have intercourse with you’re mom and have a sister, then have intercourse with her and her child will become your grandson/granddaughter and it will be your sisters kids so your also a uncle grandpa
by I hrhejejdb June 03, 2019

by Miss. Hollywood May 16, 2018

uncle grandpa is from a tv show with the same name. Basically he came to be because your grandma adopted her husband. Therefore, he is you uncle and grandpa.
by I lost my boot June 19, 2018

by suckmymiddletoe November 07, 2018

That grandpa you have that lives by himself in that bigass house. He's loaded. He's got that big shiny SUV. Always got his prescription sunglasses on. Wears a hat even while inside. Socks and sandals all day bitch. Unless he has his fly hi-top blue sneakers or boots. Goes to the bank to get you your fat weekly allowance. In his pajamas. Makes everybody call him Uncle *insert name* You could totally see him in a rap video.
by McFly got some new kicks March 10, 2013
