Plural of grubby; dirty or worn-out clothes, especially casual or work clothes.
From 'grubby' (adjective) + -ies suffix creating a noun. Used informally to refer to clothes stained with dirt or suitable for dirty work, primarily in Australian and British English.
Australian slang made this word iconic—'grubbies' for work clothes or play clothes is so vivid because it suggests clothes that *are* expected to get grubby, turning an insult into practical fashion!
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