Delamongas, also written as "Delamongus" is a word that describes a person being (coming/steming from) Amongas/us.
The word has multiple meanings and is adaptible to a wide range of cases. Some of those meanings is: @) being SUS (suspect), being idiotic and being extremely clever.
Don't ask me why.
Hello Mr Delamongas. How are doing you today?
Person A: What's woth that guy?
Person B: He's Delamongas.