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1.
An abbreviation of "what am I going to do?" but only used in the context of a situation where there are potentially dire consequences to doing/not doing anything. Popularized by the slack jawed youth of Limerick this slang is an expression of a true commitment to being a Limerick Kid.
*A Limerick kid is forced to chose between copper pipe and Coco-pops* Wadamagonado!
by D-dog92 April 26, 2013