someone who takes a shit but it's a single splash kn the toilet
by two door sedan May 12, 2021
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A person who has no idea what they are doing, someone completely oblivious to the fact they are doing something extremely stupid.
also, it's fun to say, so it's a great way to insult your friends.
Oh my god, how did you just die from that?! You're a total plonker!
by Aotnigci June 14, 2021
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A plonker is somebody (often male) who aggressively masturbates over a woman's vagina
"Todd is a right plonker isn't he"
by Fbfzone December 13, 2020
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A plonker is somebody (often male) who aggressively masturbates over a woman's vagina
"Todd is a right plonker isn't he"
by Fbfzone December 13, 2020
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I Plonker is an absolute idiot who has done something stupid eg.

Stop wanking in the library you plonker
by Nugget tickler March 25, 2019
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