When a person has head/earphones and acts as if they can't hear what you are saying to ignore you while you are rambling on about something they dont want to hear
justin....JUSTIN!!!!!!!!!!!!! (take headphones out person ear) why u keep boseing on me with them jawns
brilliant; fantastic; excellent; derived from the Anglo-Saxon 'bosten', meaning 'something to boast about' and now used almost exclusively in the Greater Birmingham area of the UK