Origin: From the Middle Eastern military practice of soldiers counting off and the 9th soldier in every squad becomes the fuck-buddy for the rest of the men while they're in the field. Related to bacha bazi, the Afghani practice of taking boys, dressing them up like girls, teaching them to dance and then using them as sex slaves.

In Arabic: jundi raqm tisa

American Military Usage: meant as a dark joke. If someone asks how you're doing and you respond with, "I feel like soldier number nine," it means you're having a truly fucked up day or experience.
You: "Hey Bob--how the fuck ya' doing?"
(Bob looks like something just shat him out).

Bob: "Shit, dude. I'm feeling like soldier number nine."
You: "Did you get wasted last night?"
Bob: "Don't remember. But at least I didn't wake up in a tub full of ice and missing a kidney."
You: "...or with a number nine poop chute. But you might want to brush your teeth, I think someone used your mouth as a cock-holster."
by Ho-Chi-Mint September 17, 2013
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