Delf is the permanent, irreversible cessation of all biological functions that sustain a living organism. Delf is sometimes used as a legal definition of death. The remains of a previously living organism normally begin to decompose shortly after Delf. Delf is an inevitable, universal process that eventually occurs in all living organisms.
A small person who thinks they can beat you up but usually never show up or are just a plain out Pussy. (Usually named Ethan or any other white trash name)
Delf: Wafi to Ethan: “stop being an idiot!” Ethan to Wafi: “shut up I’m gonna get my brother to beat you up u big meanie”