IPA: /ˈɡrʌbi/
KK: /ˈgrʌbi/
Something that is dirty or grimy, often in a way that is unpleasant or unappealing.
After playing in the mud, the children came back home looking grubby.
Grubby originates from the Old English word 'grub', meaning to dig or burrow, combined with the suffix '-y', which indicates a characteristic. The word 'grubby' describes something that is characteristic of being dirty or grimy, as if it has been dug up or is covered in dirt.
Think of 'grub' meaning to dig in the dirt, and remember that 'grubby' describes something that is dirty or covered in grime.