Definition & Meaning of "stonker"in English

What does "stonker" mean in Australian slang?

In Australian slang, "stonker" means exhausted, worn out, or physically drained, often after hard work, sport, or a long day. It is used in informal Australian English in everyday conversation to describe a strong state of fatigue rather than mild tiredness. The term developed in Australian and British colloquial speech in the early 20th century, originally linked to "stonk," meaning to hit hard or overwhelm, which evolved into slang describing something being hit hard physically or figuratively, and later extended to the idea of being completely worn out.