Search Result for "bummer": 
Wordnet 3.0

NOUN (2)

1. an experience that is irritating or frustrating or disappointing;
- Example: "having to stand in line so long was a real bummer"

2. a bad reaction to a hallucinogenic drug;

The Collaborative International Dictionary of English v.0.48:

bummer \bum"mer\ (b[u^]m"[~e]r), n. 1. An idle, worthless fellow, who is without any visible means of support; a loafer; a dissipated sponger; one who bums. [Slang, U.S.] [1913 Webster] 2. an unpleasant event, experience, or situation; as, getting caught in a cloudburst while wearing my best suit was a bummer. [Slang, U.S.] [PJC]
WordNet (r) 3.0 (2006):

bummer n 1: an experience that is irritating or frustrating or disappointing; "having to stand in line so long was a real bummer" 2: a bad reaction to a hallucinogenic drug
Moby Thesaurus II by Grady Ward, 1.0:

132 Moby Thesaurus words for "bummer": Arab, Bowery bum, adverse circumstances, adversity, affliction, aggravation, annoyance, bandit, beach bum, beachcomber, beggar, beggarly fellow, blight, blighter, bo, brigand, budmash, bum, cadger, caitiff, care, coupon clippers, cross, curse, depredator, derelict, devil, difficulties, difficulty, dogie, downer, drifter, drone, drunkard, forager, freebooter, freeloader, gamin, gamine, good-for-naught, good-for-nothing, guttersnipe, hard knocks, hard life, hard lot, hardcase, hardship, hobo, homeless waif, human wreck, idle rich, idler, irritation, landloper, lazzarone, leisure class, loafer, looter, losel, lounge lizard, lowlife, lumpen proletariat, mauvais sujet, mean wretch, mendicant, mendicant friar, mendicant order, moocher, mucker, mudlark, no-good, nonworker, panhandler, parasite, pauvre diable, piker, pilgarlic, pillager, plight, plunderer, poor creature, poor devil, predicament, pressure, ragamuffin, ragman, ragpicker, rentiers, rigor, rounder, sad case, sad sack, schnorrer, scrounger, sea of troubles, ski bum, skid-row bum, spiv, sponger, stiff, stray, street Arab, street urchin, stress, stress of life, sundowner, surf bum, swagman, swagsman, tatterdemalion, tennis bum, the unemployable, the unemployed, tramp, trial, tribulation, trouble, troubles, truant, turnpiker, urchin, vag, vagabond, vagrant, vale of tears, vaurien, vicissitude, waif, waifs and strays, wastrel, worthless fellow, wretch