The colouring matter of fustet.

To fret, whine, or complain. / To fuss; to meddle or micromanage. / To become marked with signs of age or decay. / (Ireland) To fumble; to work clumsily.

present participle of fuster

A saddle tree maker.

Third-person singular simple present indicative form of fuster

Upset; worked up.

plural of fuster

simple past tense and past participle of fuster

plural of fustercluck

(euphemistic) A clusterfuck.