A designation given to someone who is beyond clueless on statements that are more than obvious to everyone else

Someone who is slow to catch on or major dense. When references are made that they should know they respond with 'HUH?'. Typically you need to repeat it 2 or 3 times and then after the 3rd time you have to break down get all upset and explain it in gory details to them.

This was coined as iridium is the densest material known to man.
Can someone please explain winders logic to Captain Iridium? I have told him three times already and will kill myself if I have to again.
by 1337c0d3d00d December 5, 2011
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From the Halo Universe, the phrase "Undid Iridium", when spoken in front of a UNSC Artificial Intelligence, will override it, causing it to obey the commands of the person who recited the phrase.

In Spartan Ops Episode 7, you can see an example of this phrase in work, when Dr. Halsey uses it on A.I Rolland to break from her cell.
Halsey: Hidden things can be... useful.
Roland: Such as?
Halsey: Such as the phrase "Undid Iridium".
*Roland begins glitching as he attempts to repeat Undid*
Roland: UNSC AI override instructions active, Doctor Catherine Halsey (in calm, new voice).
by MagmaticLizard January 29, 2013
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Heterochromia Iridium is when somebody's two eyes aren't the same colour.
two different coloured eyes is called Heterochromia Iridium.
by Nintendo-Innuendo August 19, 2006
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