An officious is someone who offers there help when it is not needed and has not even been asked for.
An "officious intermedler" is a legal term too. It means the same thing.
Their* help, and you would say 'an officious person', it's not a noun.
really cool word
More information about formatting options
Kind of a contradiction in itself, it can mean great or horrible.
© 2010 Coolest Words