A phrase said when emotional music plays on a radio or in a movie. This phrase may also be used to refer to a guy/girl making foolish decisions when it comes to their love life.
Goddammit Joe Keteles, stop making out with Emily. Goddammit Joe Keteles, Tonight by FM Static is on the radio again!!!
A variation of "God damn it", usually used when one is in a state of bitterness, pain, or rage.
Bitter: "I used to go out with Gwen Stefani, but I broke up with her. Godammit."
Pain: "OW! GODAMMIT!"
Rage: "Godammit, I'll stab your face if you don't shut your talk hole!"