The story
blood (noun) + and (conjunction) + thunder (noun). First attested in 1696.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Violent action and language, especially of a melodramatic kind, or the representation of this, or an aggressive or bad-tempered physical confrontation, typically in a sporting context. Full definition →
blood (noun) + and (conjunction) + thunder (noun). First attested in 1696.
Etymology from Wiktionary, CC BY-SA 4.0.