I assert that ‘dammit’ should be spelled ‘damnit’.  Damnit is treated as a misspelling by the spellcheckers I use, but dammit just looks…  ridiculous.  It’s a word with no gravitas, something that dribbles out of someone’s mouth as an almost invisible droplet in a stream of unnecessary noises punctuated by smacking gums and the occasional squirt of spent chewing tobacco spit.

Damnit, on the other hand, can be a heartfelt condemnation of a person, place, or thing.  Not only do I judge X lacking, I call upon the gods themselves to damn it because of the magnitude of the failure.

Damn it, Crom.  Damnit.