0 the basic, hard work, often physical or boring work, that is necessary for something to succeed: --
A computer can handle the mathematical grunt work.
As an apprentice, you start out doing a lot of the grunt work.
His martini-based plan sought to minimize the grunt work by leadership (him) and assign responsibility for maximizing productive learning and contribution to his participants (everyone else).
Because fighting for a rebound can be very physical, rebounding is often regarded as grunt work or a hustle play.
The duo's initially violent nature was eventually subdued as they proved useful in grunt work, and sometimes served as comic relief for the audience.
Anything that does not involve his genius mind and that the normal individual can accomplish he calls grunt work.
This facade was also apparent to some youth members of the organising committee who felt their role was confined only to grunt work and publicity.