Much like a family tree, with the exception that relationships are formed based on who individuals hooked up with instead of genetic lineage. Best evidenced in college settings, especially in fraternities and sororities.
"I can't believe I'm in the same tree of taste as Chris. It's like an evil version of 'six degrees of Kevin Bacon.'"
by Wonder Weasel August 23, 2006
Can you define these popular missing words?