Slipped into oblivion???
see and look for this text:
A teraz przez Was moja kapusta nie rozumie, co do niej mówię, nooby!
Ok, ok, I think I can accept this slang meaning of kapusta if you insist.... :):):)
But, obviously, it isn`t too popular. Probably only in provincial areas....
I know the difference between cabbage and onions!
Are you sure of it? :):):)