The theory that states that one judges a guy/girl's hottness by comparing him/her to those around them. This explains why one would think someone is hotter when seen at, say a movie theater, than at school. There are fewer to compare them to.
Guy 1: Dude, that girl that goes to your school is really hot.
Guy 2: Naw, that's the theory of relative hottness. At school she's not that hot.
by Free6000 December 9, 2008
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