bummer

Từ điển American Heritage Dictionary 4th

bum·mer (bŭmʹər)n.
1. Slang. An adverse reaction to a hallucinogenic drug.
2. Slang. One that depresses, frustrates, or disappoints:
Getting stranded at the airport was a real bummer.
3.
a. A loafer or idler.
b. A beggar. [From bum¹ adj. Sense 3, probably from German Bummler, loafer from bummeln, to loaf.]