Depends on the situation, everything is screwed up. It could be a smell, a dirty room, or anything out of the ordinary. The word (shamped), can be said in any context.
"That pork sausage shamped up my guts"
"My radio is all shamped up, it keeps skipping my favourite songs"
"what the {shamp)" said when somthing does not make sence.
A person who's dad cannot spell and miss spelled Samuel.
Typically a fast speaker with a massive tongue can be seen as a human version of a dog due to the previously mentioned tongue.
Shamuel typically like to play football but are bad at it.
Person A: That guy just licked his own fucking nose WHAT THE FUCK?!?!?!
Person B: Must be a Shamuel!