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1.
in reference to the submarine rule of 'sub-safe,' which is the policy of keeping any holes in the boat plugged to prevent flooding, as well as stowing all loose items in secure locations.

Also a joke amongst submariners about three guys on one girl, such that all "holes are plugged"
"We sub-safed the XO's wife."
by WMR1 February 03, 2010
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