Top definition
calcium, lime, rust, and other such unsavoury substances, especially those tough to clean ones
"Man you just spilled 5 litres of bucket water on my carpet! That's grust."
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2
calcium, lime, rust, and other such unsavoury substances, especially those tough to clean ones
"Man you just spilled 5 litres of bucket water on my carpet! That's grust."
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug