foul, hideous, repulsive, mingin, ill, (derived from The Grattan Catalogue - A mail order pamphlet exhibitting the most disgusting polyester y-fronts and flower-print frocks aimed at the over sixties)
Throw away that grattan cheese, its been in the fridge for months.
Don't give me any more vodka i'm about to grattan out.
The doc's told me to give up the fags, aparently my lungs are all grattan.
a verb or a noun - an illness/cold, something quite nasty, bad, unpleasant or naff
oooh that's a bit grattan
oooh i got a bit o' grattan!