a griffo is a derogatory name used when a half full beer
is found abandoned at a party or pub by someone because they either cant drink it or want a fresh one.
originates from maroubra, sydney, australia out of respect for griffo, who has continuosly been caught not finishing his beers.
when a half full beer is found in the middle of a table and no one is drinking it, 'whose f#&kin griffo is that?'
or when leaving a place and someone doesnt finish their drink before they go,you may stand, point at them and yell 'GRIFFO'
alternatively you can leave a beer at the end of the night half full and remark, 'this is for griffo' as long as it is announced