The plain meaning of the word "damn" is to curse or swear, often used as an expletive to express strong disapproval or anger. It can also mean to condemn or criticize something severely.
Usage examples
"I can't believe I forgot my damn keys again!"
"That movie was damn good. I highly recommend it."
"You did a damn good job on this project. I'm impressed."
"I can't stand these damn mosquitoes. They're ruining my evening."
"Damn it, I spilled coffee all over my shirt!"
"He's a damn genius when it comes to fixing cars."
"I need to find a better job. This damn one is wearing me out."
"Damn, it's freezing outside! Don't forget your coat."
"I've been working on this damn puzzle for hours and still can't figure it out."
"We've been waiting in this damn line forever. I hope it moves soon."
Food that your body likes, that supports your metabolism, that turns off hunger hormones, that makes you feel calm, and that makes you feel pretty damn good about yourself. (thenutritionaddiction.com)
Kid has played pretty damn well given the circumstances. (sbnation.com)
Maintained visitors to enjoy one of best damn thing i could think of with or bisexual and a lesbian. (petesgrillandpizza.com)