A peice-of-shit car, commonly a vauxhall nova or ford escort, that has been modified to look "gangsta". Amendments normally include bucket seats, red seatbelt, a racing steering wheel, tinted windows and skirting that catches on speed bumps. These vehicles can often be seen crawling through St. Anne's, Toxteth, Marsh Farm, Blackbird Leys etc. However they are more frequenlt heard either because of the de-silencered roar of their two stroke engine or the deafening thud of Nelly/Ja Rule being played at 200 decibels through spekers that could kill a man.
medical slang - serious, life threatening, terminal or just plain un-pleasant condition. Short for bad fucking news.
"I had a patient in here the other day who had some how managed to get one of his testicles wedged back inside his inguinal canal"
"ouch, that is BFN"