A mundane foodstuff mentioned by
Ivor Cutler in a
humorous monologue,
Gruts for Tea.
By extension and via Herring oikolect, the term has entered general use - admittedly not very widespread, but you can all play your bit - to refer to:
- Breakfast cereals, particularly oats and muesli
- Dry catfood (specifically, "cat gruts" or "catgruts")
- Solid residues in liquids, particularly:
- Yeast residue in live-bottled beers
- Coffee grounds
- Sugar deposits in wine
- Anything that needs to be filtered out of home made items such as sloe gin.