Billy, for reasons lost in history, is sometimrs used as an intensifier in profanities, or to personify any notable trait in a person. Billy Whizz (amphetamine),Billy no mates (a friendless person) billy (a bong or a bag of pot), moaning/hurting like billy-o (extremely), billy can, billy tea and billylid (Aus. rhyming slang for a kid)...billy-bashing, BIlly Bullshit, billy bob (any white trash), billy big pants (a harmless dork)...the list goes on and on .

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