This is the 12715th most frequent Swedish word.
sprängstoff
Explosive material.
In this context, 'sprängstoff' is used to refer to physical explosive matter or dangerous substances.
Materialet innehåller sprängstoff och måste hanteras försiktigt.
The material contains explosives and must be handled carefully.
'Sprängstoff' here metaphorically describes the speech as provocative or emotionally charged, capable of eliciting strong reactions.
Hans tal var sprängstoff och väckte starka reaktioner.
His speech was explosive and evoked strong reactions.
This usage shows 'sprängstoff' as a metaphor for something with significant impact or potential controversy, applied in a sociopolitical or conceptual manner.