Somebody is who is beyond stupid in general or at certain tasks. They are so dumb that they compare to a plank of wood in terms of brain usage.

In fact the plank of wood will usually solve the task before the person.
Jack: So did Alan manage to fix that rusty gate?

Bill: Nah man that lads as thick as a plank.
by MrWeldon February 6, 2018
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an expression defining how stupid someone is; chiefly British.
i.e.: the thickness of two planks of wood stacked one atop the other.
sometimes shortened to "two short planks"
"Whoah, you're thick as two short planks!"



by dv8trix September 7, 2008
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