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An exceptionally tall girl that exhibits ratchet-like behavior ie. wanting to headbutt people randomly, telling people to suck their dick, excessive and belligerant drunken behavior.
Man that tall girl is being crazy.. she's such a giratchet.

Dang, check out that ratchet! She's tall AF! Must be one of those giratchets..
by Cap'n Save-A-Hoe November 01, 2013
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