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Sheldon Shirtsex (-0.854)
A usually brightly-colored T-shirt that features a science- or comic book-related graphic. Usually worn over a thermal of a contrasting color for a complete look.

Named for the "Big Bang Theory" character who often wears such shirts.
"I got a Sheldon shirt for Christmas. It's blue and has Rock Paper Scissors Lizard Spock on it."
by Moon Unit Nimoy January 12, 2010
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