Typhoo put the T in Britain, and you put the T in idiot
A disparaging comment to someone who has just behaved in an idiotic or incompetent way
nob1: Oh no! I've just put that new wallpaper on upside down
nob2: Well, you know what they say - Typhoo put the T in Britain, and you put the T in idiot
nob2: Well, you know what they say - Typhoo put the T in Britain, and you put the T in idiot