Definition:
A casual, abbreviated form of nonchalant, used to describe someone who is effortlessly cool, calm, and unconcerned—often in a stylish or slightly dismissive way.
Common in informal speech or text, especially among younger crowds or in creative circles. Can function as a vibe descriptor. May also appear as a noun in stylized contexts (e.g., “He’s pure nonch.”)
Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.