The combination of a military issue poncho and it's corresponding liner. When attached, these items form a very snuggly means of staying warm in otherwise intolerable conditions. Often mispronounced "wooby" (like, booby). Though extremely comfortable, this is not a suitable substitute for MSS or Gore-Tex.
Major: Do you have something warm to sleep in?
Cadet: Sir, I will be perfectly comfortable in the -30oF weather and freezing rain because I have my wubbie. Now, excuse me while I proceed to freeze my nuts off.
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