Term used to describe very large breasts, so big infact the words get mixed up in your brain (since the phrase is suppose to come out Big o' Titties). It also is used to mask the fact that your talking about Big o' Titties in front of the ladies, unfortunately the drool on your chin gives you away.
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.