Plonker is British slang for penis. Literally pull my plonker is to masturbate. But nowadays the expression someone is pulling my plonker is used with the meaning of someone is messing with me or trying to make fun of me.
This Brit told me in the UK the weather is always sunny and hot. 0bviously he was just pulling my plonker
by Teleco November 26, 2016
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expression used after a practical joke has been played on a fellow subordinate
"Hey Jim... your mother is dead"
"oh my god really....?"
"Nah ...only pulling your plonker"
by Big Jakey T March 17, 2003
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