Leather Tuscadero had the hand-gesture greeting, where she slapped her thighs with both hands, then pointed at the person. Did Pinky have a similar greeting? If so, what was it?

Yes in fact she did have a slightly simlar action. i can't remember excatly but believe it inloved claping and snaping in some why.

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Wait,hold it I don't want anybody hurt because I did a dumd thing-Joanie

Oh,good he hit Potsie- A very scared Raplh.
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When I want my kid brother to tell me what to do with my other kid brother, I'll ask you kid brother-Darry=The outsiders
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Shouldn't we use the beans for gas-Lavrene
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And tell me do you belong to a fretenty-Loribeth
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She went to chicgo and became a nun. we stayed in milkwakee and became bimbos-Shirley
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"you can wake up now the universe has ended" Jim Stark(James Dean)-Rebel Without A Cause.
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"Where are the seudes?"-potsie
"Who Milly and Tilly, There in the kitchen Makin' chilli"-Leather
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BUB bye for now!!! see ya!
~~PINKY~~
:)

I think she tried to imitate Curly of the 3 Stooges, didn't she? I mean, Curly had a very similar hand gesture in his flicks