What is Signature Shirt?
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A signature shirt or sig shirt or SS is a shirt that a person in a picture wears usually on purpose. This is sometimes a person's ow custom shirt but mostly it's not. These are usually validated by a myspace whore or a just a man/woman looking for a hot date. sometimes it cld be just a bikini top (hopefully only for a girl)
(Signature Shirt)
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Random Words:
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The use of multiple condoms to prevent STD and pregnancy against supersluts.
Steve: would you have sex with britney spears?
Jeremy: no..
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The act of farting and simultaneously shaking one's ass slightly side to side onto a partners face while the partner has mouth open..