Not very good, substandard, or just a bit shit really. Originates from "Bovingdon market" where fake good are sold, which are substandard. These good are known as "bovvy."
"Allow this yat, she so bovvy bruv"
"My phones got a cracked screen, its a bit bovvy"
"Patrick's clothes are so bovvy"
"My phones got a cracked screen, its a bit bovvy"
"Patrick's clothes are so bovvy"
by Paddywagon March 17, 2014