Ties and the tying tiers who tie them

Crikey! Does Col Allan, the Australian-born New York Post editor, even speak English? (I know that Australians in general don’t speak English: for example, in Australia, they don’t say “beer,” they say “Foster’s,” mate.)
How else to explain this totally inappropriate headline on the cover of today’s paper? According the online Phrase Finder, to tie one on means to get drunk. (All roads lead back to Foster’s, mate.) Does that even make sense in this context? And don’t even get me started on KNOT TO WORRY…