any penis, but not a very small
A foolish person.
A big wet kiss.
anything that is remarkably big.
certainly most derive from plonker
as size, but this in turn possibly from
"to plonk", to place with little or no accuracy possibly because it was big and heavy. See also plonka
"Put your plonker away, Eric."
"Oh Bob, you're such a plonker."
"When I said she looked nice, she gave me a plonker straight on the lips."
"It was the biggest turkey we'd ever had. A real plonker."
the meal down
of me. 'Get stuck in,' she cried."