
5.5-tuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and eleven great-great-great-grandparents in common.
My 5.5-tuple-fourth-cousin is a good person.
by ABGR June 9, 2021

1. The grandchild of one's parent's stepsibling.
2. The stepgrandchild of one's parent's sibling.
3. The grandchild of one's stepparent's sibling.
2. The stepgrandchild of one's parent's sibling.
3. The grandchild of one's stepparent's sibling.
by Elivaldeq November 24, 2019

1- Child of parent’s full sister and of other parent’s full brother at the same time.
2- Child of paternal aunt (father's sister) and of maternal uncle (mother's brother) at the same time.
3- Child of maternal aunt (mother's sister) and of paternal uncle (father's brother) at the same time.
4- Nibling (biological) of mother and of father at the same time.
5- Two parents's nibling.
6- Person who, in relation to the other person, has zero parents and four grandparents in common.
7- Double-cousin.
8- Double-1C.
2- Child of paternal aunt (father's sister) and of maternal uncle (mother's brother) at the same time.
3- Child of maternal aunt (mother's sister) and of paternal uncle (father's brother) at the same time.
4- Nibling (biological) of mother and of father at the same time.
5- Two parents's nibling.
6- Person who, in relation to the other person, has zero parents and four grandparents in common.
7- Double-cousin.
8- Double-1C.
My double-first-cousin is a good person.
by Peter12369 October 21, 2021

Parent's male first cousin.
by Mr. Jacov November 23, 2019

Half-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and one great-great-great-grandparent in common.
My half-fourth-cousin is a good person.
by ABGR June 9, 2021

When you and another guy get cheated on by the same girl but both of you already fucked her and you both have her AIDS.
Guy One:Dude,I can't believe she used us like that,and now I have AIDS from her.
Guy Two:Bro I got AIDS from her too!
Guy One:Holy moly that makes us flu cousins.
Guy Two:Man let's go somewhere to eat,my treat.
Guy Two:Bro I got AIDS from her too!
Guy One:Holy moly that makes us flu cousins.
Guy Two:Man let's go somewhere to eat,my treat.
by Quantum Ranger September 20, 2015
