A dumpty is a sweet and calm animal (most likely a dog but could be a rabbit or a gremlin in disguise). Dumptys are the sweetest animals in the world and they never bite, bark, or shred things because they are so calm. Dumptys love their master and are protective. They protect the house during the week when they sleep in the living room and they get rewarded with cuddle time on weekends for their good work.
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.