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
Get the Uncle Grandpamug. An inappropriate Cartoon Network show about the child of a man who screws with his niece: so their child’s paternal uncle and maternal grandfather are the same person.
by xp649 July 6, 2020
Get the Uncle Grandpamug. 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 3, 2019
Get the Uncle grandpamug. by Miss. Hollywood May 16, 2018
Get the Uncle-grandpamug. by kanyesbutthole October 15, 2019
Get the uncle grandpamug. 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
Get the Uncle grandpamug. by suckmymiddletoe November 7, 2018
Get the uncle Grandpamug.