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An extremely awesome nickname, usually given by an older sister, or a friends older sister. The holder of this nickname is an awesome person and an amazing dancer. She is a great best friend

PS She's single ;)
Meghan: Ally Poo Poo boo boo boo boo
Colleen: . . . you guys are weird.
by AleXsBESTfrIenD13 August 12, 2009
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