To be 'brakked up' is the UK street slang term for being beaten up. Not so frequently used since 2010, telling someone "you are going to be brakked up" was most prevalent within the black gangsta community, but also common with some chavs. It is commonly recognised as a colloquial modification of the term to 'break up.'
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.