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The toothless look on the face of an old person.

Further used to reference anything old.
Grandma is really grinning today.

By the time this pizza arrives I'll be grinning
by donjon May 04, 2007
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Jul 1 Word of the Day
sending two texts in a row without a reply inbetween.
Rachel: whats up?
Tessa: not to much! hbu?
Tessa: dude, i'm so bored.
Rachel: stop double texting me.
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