1 definition by som3randomp3rson

A relationship between three people, where all three people are equally involved in the relationship and get along harmoniously. These relationships can involve persons of any gender.
Woman 1 (to Woman 2): You're such a good girlfriend. :
Woman 3: What about me?
Woman 2: You're our girlfriend too.
Woman 1: Yeah, we're a triceratops.
by som3randomp3rson November 30, 2012
Get the triceratops mug.