An alickadoo is a non-playing member of a UK based rugby union club who helps in the running of the club by performing various roles, usually on match days. These roles are not committee positions but are essential if the club is to function properly.

The term alickadoo is peculiar to rugby union in the UK and its origins are somewhat obscure. Legend attributes the term to former Irish full back and captain Ernie Crawford, who was rumored to remark on a book read by a team-mate by saying "You and your bloody Ali Khadu. Another possible origin dates from the amateur days of the game, when hard pressed club helpers, when asked for more balls, players, games etc the reply was " it's all I can do". Hence alickadoo.

Similar terms include blazers and old farts (a reference to an outburst by Will Carling).