interjection
dang
DANG/dˈæŋ/
A mild exclamation expressing emotion or adding emphasis.
Dang, the pencil just snapped!

Etymology
Latin damnare meant “condemn,” which developed into damn’s religious sense of dooming someone to punishment and its use as an oath. Dang softens that oath into a mild exclamation.
In context
… I was like dang like this Joker is doing million dollar left and right and he just stopped in his day to respond