Usually used to refer to a nigga who sucks ass at
League of Legends. A Dulla will have lost countless games of
League of Legends due to various reasons, which may include autoing a control ward deep in the enemy jungle, losing Drake to Jinx Ult, Nocturne Ulting a Shaco Clone when the real Shaco was ignited, focusing tanks and using their whole ability rotation as a Kayn onto a Tank Warwick and then getting raped,
perfectly missing Maokai Ult between two enemies, failing to tower dive and inting instead and so on.