This is the 10162nd most frequent Polish word.
bomba
"Bomb" (explosive device) or "amazing" (slang for something great).
In this sentence, 'bomba' refers to an actual explosive device, its primary literal meaning.
To jest bomba!
This is a bomb!
Here, 'bomba' is used idiomatically to mean something was fantastic or fun.
Ta impreza to była bomba!
That party was amazing!
In this phrase, 'bomba' is colloquially used to describe a stressful situation, giving it a figurative connotation.