Term used in the Oil and Gas Industry describing a well where no information is to get out. Info is only shared between the most trusted people. Can be used in everyday speech for a deadly secret that others are not to repeat and you would only tell a spouse or old friend.
Honey, I actually like men and not you. I will stay married with you for the children. (No need to say this is super tight hole information.)
by Big Head Mike July 7, 2009
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