puggled

A vivid Scottish and British military slang term meaning completely drained, exhausted, or — in army slang — properly drunk. When you're puggled, you've got nothing left: your energy, your focus, and possibly your balance have all deserted you. The Scottish sense leans toward fatigue and mental depletion, while the military usage slants toward being intoxicated. Either way, the word perfectly captures a state of total spent-ness that 'tired' just doesn't do justice to.