hako wrote:

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I thought a tug was any vehicle that tugged a caravan/trailer behind it.....it it doesn't have anything behind it then it is not a tug.

But apart from those niceties, us Aussies have idolised the Yanks since WW2 when then came in their droves with chewing gum, Coke and gob hats. Plus solid flash cars that could take our roads. And the movies - especially cowboys and indians plus the big breasted beauties featured in Fantale wrappers. I do not at all like the Yank cultures but admit I do at times sneak a bit of it.
Good Luck.

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 If it isn't used in the briney it ain't a tug either.