waster
wast.er \'wa--st*r\ n 1a1: one that spends or consumes extravagantly :
SPENDTHRIFT 1a2: a dissolute person : WASTREL 1b: one that uses
wastefully or causes or permits waste {a procedure that is a ~ of time}
1c: one that lays waste : DESTROYER 2: an imperfect or inferior
manufactured article or object
Webster's English Dictionary