Klick is a common military term meaning kilometer when referring to distance. Its use became popular among US soldiers in Vietnam during the 1960s, although veterans of the war recall its usage as early as the 1950s. The term is of unknown origin. It is likely to be an example of condensed pronunciation or contraction of the term kilometer, although other theories exist.
Either a kilometre or a kilometre per hour ("kilometer" for Americans) depending on context. Pronounced as "click" but always written with an initial 'k'.
Common in Canada. In the US it's strongly associated with the military.
See k which can also be used for "kilometre" but not for "kilometre per hour".
"It's about two klicks up the road." (Distance: 2 km)
"We were doing ninety klicks." (Speed: 90 km/hr)
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.