Lummock 

Large, oafish person. A clumsy fool.

Yer sittin on me bacon bap you gret LUMMOCK!

Lummock by Wizard February 22, 2003

lummocks 

A lummocks is generally someone who is a lazy fat bastard...Like a couch potato, but worse.

Luke, get out of the way you fat lummocks.

lummocks by Tal April 12, 2005