it'll

It'll all come out in the wash. (informal)

something that you say in order to tell someone not to worry because mistakes or problems will not have a serious or permanent effect. It was the wrong thing to say, but don't get too upset, I'm sure it'll all come out in the wash eventually.

See also: all, come, wash

It'll (all) end in tears.

something that you say which means something will end badly and the people involved will be upset. She only met him in May and they were married by July. It'll end in tears, you'll see.

See also: end, tear

It'll never fly. (American)

something that you say when you think an idea will not be successful. He sent me a movie script but it'll never fly - it's just too unbelievable.

See also: fly, never