Definition of I'll be darned
- Well I'll be darned! You actually showed up!
- I offered to help, but I'll be darned if she didn't do the whole thing herself.
- I told them they wouldn't enjoy the trip but darned if they didn't come anyway.
: the 9th letter of the English alphabet
: a graphic representation of this letter
: a speech counterpart of orthographic i
: someone aware of possessing a personal individuality : self
used as a connective vowel to join word elements especially of Latin origin
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