The phrase "soz yer beast" is slang for "sorry you beast" which derives from the term "My sincere apologies" or the latin 'mia culpa'.
I believe that the term originated in the north-westerly English town of Warrington and is sort of a Warringtonian apology.
The phrase was most commonly used amongst teenagers between the years of 2004-2007 AD.
"MATE. I atch just seen you lookin at me bird."
"Oh, soz yer beast!"
"SozBeef" is a sarcastic term to apologise to someone who is either hypocritical, stupid, or just too easy to take the piss out of. It is also used in place of "Like I care!"
A common phrase used to apologize, often over the internet. Completely useless as it contradicts itself. I wouldn't be too impressed if someone said sorry then laughed in my face.
'OMFGn00b u s0o just slowed my computer down by 1.00058374 bytes'
'soz lol'