But I was referring to meaning 3...
Anyway, you can't just impose meanings on words, that's not how language works. And besides its fascinating to see what meanings are employed at what periods of time... it can tell you so much about the culture at that time and what its repressing, which meanings its concealing.
Remember the key to Freud's analytic technique was to show people that the things they said meant two completely different things. So when someone said: "Last night on the way home I was pulling off from the curb and had to stop quickly. The car jerked off its wheels and I shot out of my seat.", the wily analyst would ask them if they were masturbating earlier that day to which they'd reply "Well, yes, how did you know."