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1.
Usually referring to a female but could also apply to a male. Can be used as both a noun describing someone's butt or as a nickname. Refers to someone with a large butt that sways while walking due to their natural swag.

Note: this is not a large butt due to the person being heavy, it is a naturally lush ass, sometimes associated with black girls
Nate: "Look at that girl, she has a swaggabooty."

Kevin: "Oh hey, swaggabooty."
by ilovecats1009 December 09, 2012