I. ˈsləmp intransitive verb
Etymology: probably imitative
Date: circa 1677
1.
a. : to fall or sink suddenly
b. : to drop or slide down suddenly : collapse
slump ed to the floor
2. : to assume a drooping posture or carriage : slouch
3. : to go into a slump
sales slump ed
II. noun
Date: 1887
1.
a. : a marked or sustained decline especially in economic activity or prices
a post-election slump
b. : a period of poor or losing play by a team or individual
one spring I was in a batting slump — Ted Williams
2. : a downward slide of a mass of rock or land