Squiffy means slightly drunk — the stage where you feel warm and cheerful and talk more, but you can still walk and hold a conversation. It sits well below drunk: a little squiffy after two glasses of wine, not squiffy after a whole bottle. The word is gentle and comic on purpose. It comes from a world of polite people who did not want to say drunk, so it softens things and makes the state sound harmless, even funny. That means it is almost never insulting; you would say it about yourself or a friend at a dinner, never about someone with a real drinking problem. It is very informal, British, and old-fashioned in flavour — you hear it from older speakers or people being deliberately playful. Younger British speakers are more likely to say tipsy, which means the same. In British English it also has a second, unrelated use: something that is squiffy has gone slightly wrong or crooked — my computer's gone a bit squiffy — but that is a separate use, not the meaning here.

微醺、有點醉（還沒醉倒，只是臉紅話多）；英式、偏老派的俏皮說法，年輕人多說 tipsy