Which tells me:
Probably an Australian expression. Thought to refer to the Australian boxer Larry Foley (1847 - 1917). Why was he so happy? I've no idea. An alternative explanation is that it relates to the Cornish and later Australian slang term larrikin, meaning a rough type or hooligan, i.e. one predisposed to larking about.
here
http://www.worldwidewords.org/qa/qa-lar1.htm
there's this thing called google
Which tells me:
Probably an Australian expression. Thought to refer to the Australian boxer Larry Foley (1847 - 1917). Why was he so happy? I've no idea. An alternative explanation is that it relates to the Cornish and later Australian slang term larrikin, meaning a rough type or hooligan, i.e. one predisposed to larking about.
thanks