slump

1. A heavy or helpless collapse; a slouching or drooping posture; a period of poor activity or performance, especially an extended period.
2. A period when a person goes without the expected amount of sex or dating. (slang)
3. A period of poor performance. · If she doesn't pull out of her slump, her job may be in jeopardy.
4. A measure of the fluidity of freshly mixed concrete, based on how much the concrete formed in a standard slump cone sags when the cone is removed.
5. A form of mass wasting in which a coherent mass of loosely consolidated materials or a rock layer moves a short distance down a slope.
6. A crater or depression (an area where the ground slumps) which forms as a result of such wasting. (A large crater is colloquially called a megaslump.)
7. A cobbler-like dessert cooked on a stove. · a blackberry slump

الجمع slumps