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1) A US submarine full of male naval officers.

2) A person so involved in themselves they wank so much they could fill a tanker.
1) I heard a Wanktanker pulled into Sydney this morning, they had to open the hatch to clear out the semen/sea-men stench.

2) Phil is such a Wanktanker if he were any futher up himself he could use his arse as a hat.
by Sam & Matt January 11, 2005
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