8
A game similar to conkers that involves two men and their genitalia.

Each man takes it in turn to whack the opponents balls with their penis. The receiver must ensure that their penis is held firmly up and out of the firing line so as not to interfear with a clean whack. This is repeated until the lesser man concedes defeat and the dispute is settled.
"Man i think your girlfriends hot; I'll give you a game of plonkers for her"
by TheGayMaker December 13, 2007
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9
A polite, in mixed company, and alternative word for stupid cunt and wanker.
John is a plonker.
by Dick Splash August 17, 2003
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10
Someone whose words are not worth reading.
See also plonk.
"Sheesh, what a plonker, I just forwarded all mail from him to the bit bucket.
by Alexis_J_M August 25, 2005
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11
Nursery word for poos, after the 'plonk' they make when they hit the water.
Oh look, you forgot to flush the toilet and it's full of plonkers!
by David from Kingsbury January 18, 2006
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12
To be so drunk you're unable to remember the meaning of certain words.
Gerry: You were fairly hammered last night.
Keith: I was off me bleedin plonker I was!!!!!!! Yeeoooww!!!!
by Sleazy E! May 28, 2008
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13
What you call someone who is so drunk that his head hits the table and makes a loud "Plonk!"
Ingrid is such a plonker! She is smashed out of her mind!
by Boberto the Great November 07, 2007
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14
Plonker:
Person of Little Or No Knowledge and Electrical Retarded
Ever got an Electrical shock because of sheer stupidty,therefore you are a PLONKER
by Moodygeezer May 27, 2009
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