that will be the day

that'll be the day

Said of something that is unlikely to happen. A politician speaking the truth? Ha, that'll be the day!

Farlex Dictionary of Idioms.

something is very unlikely to happen. informal

1991 Alistair Campbell Sidewinder ‘Now for my proposal, which you'll find irresistible.’ ‘That'll be the day.’

词组	that will be the day
释义	that will be the day that'll be the day Said of something that is unlikely to happen. A politician speaking the truth? Ha, that'll be the day! Farlex Dictionary of Idioms. that will be the day something is very unlikely to happen. informal 1991 Alistair Campbell Sidewinder ‘Now for my proposal, which you'll find irresistible.’ ‘That'll be the day.’ See also: that, will Farlex Partner Idioms Dictionary See also: on one's on someone's #dead (Have you) been OK? other than other than (something) pillow-biter out of one's let something drop (I've) got to go
随便看	the silent majority the silent treatment the silly season the silver screen the sixty-four-dollar question the sixty-four-thousand-dollar question the sixty-four thousand dollar question the skids the sky the sky is the limit the sky's the limit the sky’s the limit the slammer the sleep of the just the slings and arrows the slip the slippery slope the small/early hours the small hours the small hours (of the night/morning) the small matter of (something) the small print the small screen the smart money the smart money is on somebody/something