Top Definition
A Giger Wanker is someone who straps themselves to a ceiling whilst wearing a gas mask and then proceeds to masturbate to a slide show of H.R. Giger paintings. Traditionally they will mutter, "this is normal, this is normal," to themselves until they cum when they will shout, "take that sexual perversion!"
"Why is every guy I meet gay, married or a Giger Wanker?"
by H.S. Willsy August 23, 2011

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