I learnt the racist word version from Pulp Fiction
I believe Zed says it as he chooses to bum either Marsellus or Butch
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Marxist Pig Better Red Than Smeg,
Fri 2 May 2014, 18:22,
archived)
Now you mention it,
I think that was the first time I was aware of the existence of a racist version. It was always "Tigger" when I was young, and it never occurred to me to question it.
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Plague Hedgehog 'posting crap',
Fri 2 May 2014, 21:17,
archived)