I believe plonker refers to an overweight individual. It can also mean someone who is stupid and inept and used both as a serious comment and as in humour. It is also an affectionate term in the UK for someone that arranges flowers. In Australia it refers to someone who cannot ride a motor bike after it has been washed
It is a slang term for idiot.
Person with little or no knowledge!
Do you mean a plunger, where sinks are unblocked? They would b eused by a plumber.
No! you plonker!
Tailor
Plonk ya
TAILORING
iron cloth
Vigorous annoying twits you plonker
NABAMLNMAA
cause he is a plonker
iron cloth