backbreaking

[bak-brey-king] /ˈbækˌbreɪ kɪŋ/
adjective
1.
demanding great effort, endurance, etc.; exhausting:
a backbreaking job.
Also, back-breaking.
Origin
1780-90; back1 + break + -ing2
Related forms
backbreaker, noun
British Dictionary definitions for backbreaker

backbreaker

/ˈbækˌbreɪkə/
noun
1.
a wrestling hold in which a wrestler uses his knee or shoulder as a fulcrum to bend his opponent's body backwards
2.
(informal) an extremely arduous task

backbreaking

/ˈbækˌbreɪkɪŋ/
adjective
1.
demanding great effort; exhausting
Slang definitions & phrases for backbreaker

backbreaker

noun

A very difficult job or task; ball-buster, bitch, pisser (1900s+)