I'll be damned

informal + impolite

1. 1 —used to show that one is very surprised about something Well I'll be damned! Our team actually won! ; often + if I spent an hour putting the machine together and I'll be damned if it didn't fall apart as soon as I tried to use it. ; sometimes shortened to damned if I told them they wouldn't enjoy the trip but damned if they didn't come anyway.

2. 2 —used to say that one cannot or will not do something ; + if I'll be damned if I can remember where I left my keys. I'll be damned if I'm going to eat any more of that disgusting food.