An ancient cliché.
"“No, my young friend,” says Chadband, smoothly, “I will not let you alone. And why? Because I am a harvest-labourer, because I am a toiler and a moiler, because you are delivered over unto me, and are become as a precious instrument in my hands."


Moil \Moil\, v. t. [imp. & p. p. Moiled; p. pr. & vb. n.
Moiling.] [OE. moillen to wet, OF. moillier, muillier, F.
mouller, fr. (assumed) LL. molliare, fr. L. mollis soft. See
Mollify.]
To daub; to make dirty; to soil; to defile.

Thou . . . doest thy mind in dirty pleasures moil.
--Spenser.