the act of a sniffing somebodys hair and/or shoulder in order to get people to laugh, although the act of sniffing is riduculously unfunny.
"oi tuity did u get a load of that sniffa over there"
"yeah hes a gay sniffing cunt"
one of the most well known ipswich gang, the gang consists of white boys who are built like sniffas, this particular gang is known for tagging around wulkuraka, raceview and leichardt. it can be pronounced as "the switch boiz"
oi i called the cops on TSB last night coz they tagged all over my fence with a black nicko and rolled my eight year old daughter