noun, masculine/ku d(ə) bɑ̃.bu/plural: coups de bambou
energy slump; moment of madness, rash action, something done on a whim; rip-off, highway robbery, daylight robbery (excessive price that comes as a surprise)
Synonyms: coup de pompe, coup de barre, coup de mou, coup de fatigue, coup de folie, coup de fusil