Foosty Edit Meaning

1.

Of Scottish/Glaswegian derivation: rotten, gone bad

'Oi David, sniff the milk and see if its foosty'

2.

Musty, mouldy, smells bad.

The bread's foosty already! Oh, it's a week past it's sell-by date.

See mouldy, off, smelly, rotten, bad

3.

When something smells kinda bad.....

Boy, that poop I did was foosty last night