stonker

[ stong-ker ]
/ ˈstɒŋ kər /

verb (used with object) Australian Informal.

to hit hard; knock unconscious.
to defeat decisively.
to baffle; confuse.

Origin of stonker

First recorded in 1910–15; origin uncertain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019