This is not a good mnemonic to use at all. Basically only the US and Irish whiskey use 'whiskey' (and legally, you can drop the 'e' in the US), whereas everyone else (India, Taiwan, Japan, WalEs, SwEdEn, GErmany, FrancE, DEnmark, etc.) use 'whisky' (and tend to largely (but not totally) follow SWA regulations). Don't sleep on so-called 'world whisky'. You'll be missing out.