A state of being absolutely wasted, at least blackout drunk. It works even better if one of your friends has to take care of you that night, or if you barf whilst hooking up someone.
"So what's going on?"
"Oh my god, I'm going to get so KLed tonight!"
someone who is soo cool that theyr both a kid and a led (lad) which gives us kled
mcbride u kled,u love duff !