- (chiefly, US, informal) Extreme, excessive.
- 1851, , Moby Dick, ch. 16: It's an all-fired outrage to tell any human creature that he's bound to hell.
- (chiefly, US, intensifier, informal) Extremely, inordinately, very.
- 1909, , Anne of Avonlea, ch. 14: Of course, I was only stringing Jerry . . . he thinks he's so all-fired cute and smart.