Air Force Colonel Jack O'Neill. Goes through the Stargate. Shoots lots of stuff and never runs out of sarcastic remarks.
BAAL: "Do you not know the pain you will suffer for this impudence?"
O'NEILL: "I don't know the meaning of the word...Seriously, impudence. What does that mean?"
by yo mama July 20, 2003
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aka "the o'neill"

the asgard's most technologically advanced ship, designed to fight agaisnt replicators
named after colonel jack o'neill
by thor December 9, 2003
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n. a stealth bogey that can appear on the top lip of an unwitting person, often leading to embarrassing situations

also

v. to be o'neilled, the act of having an o'neill (see above) on one's top lip

.
*girl offers guy a tissue*

guy: "wtf was that about?"

guy's mates: "you've been o'neilled."
by bentley92 January 11, 2010
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1. the biggest whiney bitch in the history of major league baseball.
2. the right fielder for the yankees in the late 1990s
by donk July 18, 2003
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O'Neil is a wonderfully enlightened person. A majority of the people think O'Neil means hero. The direct translation would be Oh Hero! Much of the world looks up to the person with the name "O'Neil". They hope that one day they can be like him. Women are often in awe and have created what we now call the groupie movement. Little is known about the magical aura that surrounds this magnificent person.
When things look bleak one will often hear the chant "O'Neil, O'Neil, O'Neil." Only a good keen listener is able to pick up on this.
by Ryan Sunbelt February 4, 2010
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