1 definition by Rebecca Knows

Top Definition
Small welsh penile formation often found attached to the foreheads of lesser brained, slow witted apes, with the best examples sporting a high tuft of well groomed hair above the appendage.
Look at that dai over there, I've never seen one so large it must be over 1 inch!
Check out the quiff on that Dai!
by Rebecca Knows December 09, 2007

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