A large group of chavs and chavettes walking down the street or hanging around on a street corner, smoking and sometimes drunk. Like an avalanche, you may get swallowed up bt the crowd, and possibly killed by the cloud of smoke and cheap perfume that lingers! It is recomended to stay away if at all possible!
'look out mate'
'what'
'that, quick run!'
'help us...chav-alanche!!'
by **fairy** February 18, 2006
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