Double-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and four great-great-grandparents in common.
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and four great-great-grandparents in common.
My double-third-cousin is a good person.
by Gerald128 May 17, 2021

by NotLeechan March 15, 2020

by Angulorius The Third March 4, 2024

A 'third fuck' is an unwanted person who enters an argument that is already ongoing between two people
Person 1: fuck you!
Person 2: no, fuck you!
Person 3: fuck both of you!
Person 1&2: shut up you third fuck your not involved in this!
Person 2: no, fuck you!
Person 3: fuck both of you!
Person 1&2: shut up you third fuck your not involved in this!
by Derek858564 July 4, 2018

Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and nine great-great-grandparents in common.
Irregular-quintuple-third-cousin.
by Cerejini May 21, 2024

My third-cousin-1X-removed is a good person.
by N8953SW June 26, 2021
