To schlamp someone: this is some where in between a slap and a punch (also known as to "lamp"). this is where the fist grazes across the face/ body part.
Schlumpadumpf - noun - the state your boy is in when he’s wasted as fuck and laying on the floor and making absolutely no sense. May also be used to refer to the individual himself.
The state of being in a very fat nap, usually lasting between 5-40 minutes. Typically very obese people have experienced this phenomenon, but it can happen to healthy people. Also people who are fat schlump tend use anything from a Cards Against Humanity box, to a water bottle as a pillow, and can sleep anywhere available at the time.
Patrick: "Yo, wheres Victor?"
John: "He's over there, and he's sleeping on my trombone case!"
Patrick: "Damn, he fat schlump."
a adjective used to describe something that is awesome to extensive amounts; it is a very high honor is to be considered this, as not many reach this level at anything.
Nate: "Yo im so glad we got high before getting drunk and going to the movies, my night got so much better!"
Hank: "Yea man it was totally Schlampus!"