Definitions by Timothy Spall

plumby 

A legendry figure from the Mabinogion, an assembly of Welsh Storys. Plumby is said to have killed 100's or English Soldiers during Wales' struggle for independance around 500BC. Plumby used his large testicles to crush the soldiers.

You should have had a better saddle on your bike, your walking like Plumby.

plumby by Timothy Spall September 18, 2008