Son of a gunThe Prussian Civil War, and Prodigious/Antiford-Prussian war saw the rise of this insult, which means that one is an illegitimate (conceived out of wed-lock) child.
DrySees use more in the desert, but also in pompous circles to refer to the lower classes. This common adjective is insulting when emphasized in speech and writing, especially about a person or malfunctioning device.
DemonComes from the Apsara and Demon mythology. Demons are horrible creatures that dwell where humans will not. This is exclusively a racial slur referring to Vibranni, especially Red tribe of Antiford.
Tin-manAn insult to police officers. See "Bobbies" for more. Chankas are stupid, goblins are ugly, and skuttlekovy are poisonous. Many insults have been made from comparing one another to these beasts.
(Dtruver / Druvan) The strongest profanity in Kuu, much like the f-word.
(Thwumper / Thwumping) an idiot, stupid. The connotation is someone who does rude things unaware that it is socially unacceptable.