What it means
A mild British insult for someone being thick, clueless, or doing something mind-numbingly daft. You’re basically saying their head’s as wooden as a plank, so don’t expect deep thinking. It’s more eye-roll than full-on abuse, perfect for mates, coworkers, or that one bloke who can’t follow simple instructions. Often lobbed out as you plank when you can’t be bothered with a bigger rant.
Usage examples
"He tried to microwave a tin of beans, then blamed the socket. Absolute plank, mate. Stick the kettle on before he burns the whole flat down."
"You locked the keys inside the running car again, you absolute plank, how do you keep managing it?"
Where it comes from
Calling someone a plank paints them as about as bright as a piece of wood, flat and a bit dim. Mild and very British, it lands somewhere between affection and exasperation, the word a parent uses when you walk into a glass door. No real malice in it, just a fond shake of the head.
Other ways to say it
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