I Posit That Jinx Talks The Way She Does Because Of Silco Either Silco Taught Her Or She Just Absorbed How Silco Talks - Tumblr Posts
The funny thing about Silco and Jinx is that they talk like belong in Piltover, they just don't have the accents for it. They both talk in speech patterns that are vaguely more anachronistic than the rest of Zaun's cast (and even some Piltovans) that's usually associated with eccentric rich families in media.
Silco goes into soliloquies worthy of the stage while Jinx easily whips out idioms that barely made it past the turn of the century. If you plopped these two in the upper class casts of an Agatha Christie novel they'd fit right in.
Jinx and Silco would be the cut-throat noveau riche dinner party guests that the readers immediately dismiss as the killers because they're too obviously murderous. No one at the dinner party actually likes them, because it turns out everyone including the host, the murder victim, and the murderer owes Silco money. The detective solved the mystery but can't save the party from Silco and Jinx.