"Skookum" is a word of Native American origin, specifically from the Chinook Jargon, which was a trade language used along the Pacific Northwest coast. In Chinook, skukum or skookum means "strong," "powerful," or "formidable." Over time, the word was adopted into English, particularly in regions of the United States and Canada, and it has come to describe something that is robust, impressive, or of superior quality.

"Skookum" is often used informally and can convey strength or excellence in a variety of contexts, from describing a person with great physical strength or skill to a sturdy, well-built object. It can also imply something that is outstanding or exceptional, be it a person, an experience, or an accomplishment.