1 definition by Regimus Prime

Top Definition
The technical explanation of why male/male relationships are so popular with heterosexual women in fandom.
Buttsecks Math is a fairly simple equation! Even your boggled boyfriend can get it!
1 pretty man = good

1 pretty man + 1 pretty man = better

kissing = very good

(1 pretty man + 1 pretty man) kissing = doubleplusgood
by Regimus Prime January 05, 2007

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