oh my god, you're such a chunk of knobbeef  or  hey, daniel, you're lookin like a huge slab of knobbeef today
simply an insult, used in laughable cases mainly in secondary schools in the london area
"oh my god, you're such a chunk of knobbeef  or  hey, daniel, you're lookin like a huge slab of knobbeef today" What is the definition of "knobbeef"?