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1.
The theory that wearing blouses with sparkle in the cleavage area will not only bring more attention, BUT more money in tips jars for those females in the service industry.

This also works with well placed glitter/shimmer.

Can be adapted for men with shiny belts.

This concept was first defined at the University of Illinois-Urbana in 2007.
Example One:
Waitress speaking to colleague after counting tips: "MAN, Sonia's made well over $100 more in tips than me! Her sparkle theory was full blown tonight!"

Example Two:
Waitress speaking to colleague: "Man, even that old grandma was staring at my tits today! What is going on!?"
Colleague: "It's cuz you got the sparkle theory going on!"
by uofibartender August 19, 2009
4 1