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bummer

noun [S]
 
 
/ˈbʌm.ər/ US  // offensive

Definition

something that is very annoying or not convenient: "I've left my wallet at home." "What a bummer!"US I locked my keys in the car - bummer!Difficult things and peoplePreventing and impeding
(Definition of bummer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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