These two words usually refer to your mum's stinking pussy although they could be used in a sentence to insult a female in poor financial positions, this could also infer that a female is working hard during the night(:
Francesco: "Vittoria come here"
Vittoria: "No Francesco you look like my dad, if you continue on saying these things I will call 911"
Francesco:" Ok Vittoria, you Crusty Pussy Bitch"
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.