Top definition
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 06, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug