interjection
dammit
DAM-it/dˈæmɪt/
Expresses frustration or adds emphasis.
Oh, dammit, the coffee has spilled all over the place!

Etymology
The oath “damn it!” supplies the whole expression: a curse used as an emphatic outburst of anger, frustration, or annoyance.
In context
a portal appears behind him he steps in now god dammit and he vanishes god damn it i was going for him
More examples
- I want a straight answer, dammit.
- Well, dammit, I can't find my keys.
- We're going to finish this, dammit.
Similar words
- damn
- Also expresses surprise or admiration, not just frustration or emphasis.
- darn
- A milder substitute used when stronger profanity feels inappropriate.