Definition of I'll be or I'm damned if in English:

I'll be (or I'm) damned if

informal Used to express a strong negative: I’ll be damned if I’ll call her
More example sentences
  • Well you never know she may not be the criminal I think she is but I'll be damned if that's so.
  • I already own more CDs than most other ‘regular’ people, and I'm damned if I'm gonna put up another shelf when the current one fills up.
  • I'm sure when I started writing this there was going to be a point to it but I'm damned if I can remember what it is.
See parent entry: damn

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Word of the day dinkum
Pronunciation: ˈdɪŋkəm
adjective
(of an article or person) genuine, honest, true