When you and someone else have both gotten to second base with the same person.
Not to be confused with Eskimo Brother or Eskimo Sisters, in which the two people have had sex with the same person. Or with Minnesotian Twins, in which two people have simply kissed the same person.
Steve: Dude I was making out with Nikki yesterday and she let me put my hand under her shirt.
Evan: No way! I got to second base with her last week.
Steve: Canadian Cousins!
*high five*
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and twenty-one great-great-great-grandparents in common.
Irregular-undecuple-fourth-cousin.
Ninth-cousin-ten-times-removed (9C10R).
My ninth-cousin-10X-removed is a good person.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and sixteen great-great-grandparents in common.
Octuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and sixteen great-great-grandparents in common.
My octuple-third-cousin is a good person.
Living being that has zero parents, zero grandparents, zero great-grandparents and sixteen great-great-grandparents in common with other living beings.
octuple-third-cousin.
1- Spouse's third-cousin's spouse.
2- Co-3C-in-law.
My co-third-cousin-in-law is a good person.