Def. 1 - Human condition marked by depleted physical resources resulting completely in bone ass tired exhaustion.
Def. 2 - Really good name for neo-punk band.
Most people have noticed that individuals of the "Millennial Generation" when confronted directly on an issue instead of addressing the problem head-on they quickly withdraw, curl up and melt into a puddle, hence puddlemelt.
Yuri was really slacking offon the job and we were really wondering what he was doing all day, we planned very carefully as to avoid a puddlemelt incident but even after sprinkles of praise and adoration at the front end of our discussion Yuri ended up puddlemelting into his chair.
"yo, check that simp standing at the bus stop right next to that swamp in front of him. He's all five deep in fuckin wit dat iPod that he don't even know he's gonna be a victim of puddleodomy".