Top definition
Always carry a knife

(originated from S.A. Gibbs' unwritten list of Rules, as per NCIS)
AGENT: Thank god for Rule 9! Now I can cut off these ropes!
by MissNoodles June 23, 2006
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2
There is no rule 11
Guy:..... Wait where is rule 11?
Guy 2: Rule 9
by Dr. Crowley January 23, 2010
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3
From NCIS tv show agent Gibbs. Always carry a knife.

A rule worth knowing.
What if I get into something i can't get out of. ....

Rule 9 : always carry a knife, you can cut yourself out of anything.
by nothing is real May 04, 2016
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