Definition of hump noun from the Oxford Advanced Learner's Dictionary

hump

noun
hʌmp
 
; hʌmp
 
 
1 a large lump that sticks out above the surface of something, especially the groundthe dark hump of the mountain in the distance (British English) a road/speed/traffic hump(= a hump on a road that forces traffic to drive more slowly)2 a large lump on the back of some animals, especially camels3 a large lump on the back of a person, caused by an unusual curve in the spine (= the row of bones in the middle of the back)
Idioms

be over the hump

to have done the most difficult part of something

get/take the hump

(British English, informal) to become annoyed or upset about somethingFans get the hump when the team loses.