Uncle Grandpa

When your Step-Grandpa has an affair with your biological aunty, then marries her. Technically not insest, but still immoral.

He used to be my Grandpa by marriage (step) but had an affair with my aunty, so grandma kicked him out and he married aunty. He used to be grandpa, but now he is my uncle ... my uncle grandpa

by anon-nz August 10, 2019

Uncle Dan

The act of adopting a female in adolescence and then marrying her as soon as she is of legal age

He straight up pulled an uncle dan when he married his adopted daughter as soon as she was 18

by Msmith17192 January 19, 2019

uncle dan

someone who loses a lot

wow that uncle dan isn’t doing to well in catan

by payton wright September 6, 2019