Parent's male third cousin.
by Hgcloziw November 23, 2019
Get the third cousin-unclemug. My co-third-cousin-in-law is a good person.
by User655 July 25, 2021
Get the co-third-cousin-in-lawmug. My third-cousin-in-law is a good person.
by User655 July 25, 2021
Get the third-cousin-in-lawmug. 
3C:
1- Parent's second-cousin's child.
2- Grandparent's first-cousin's grandchild.
3- Great-grandparent's full sibling's great-grandchild.
4- Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and two great-great-grandparents in common.
1- Parent's second-cousin's child.
2- Grandparent's first-cousin's grandchild.
3- Great-grandparent's full sibling's great-grandchild.
4- Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and two great-great-grandparents in common.
My third-cousin is a good person.
by Gerald128 May 15, 2021
Get the third-cousinmug. Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and eleven great-great-grandparents in common.
Irregular-sextuple-third-cousin.
by Cerejini May 21, 2024
Get the irregular-sextuple-third-cousinmug. Sesquiple-3C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and three great-great-grandparents in common.
My sesquiple-third-cousin is a good person.
by ZYRB3256 February 21, 2022
Get the sesquiple-third-cousinmug.