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A term used to describe two men who have received oral sex from the same woman.

If two men both have coitus with the same woman, see "Eskimo Brother."
"Hey man, I heard you got a hummer from that bitch Tracy. Me too! Indian Cousins!"

"She was on her period so I got the BJ. I guess Mark and I are Indian Cousins now."

“When two guys get blowies from the same girl, they’re Indian Cousins"
by Assault Rifle December 02, 2011