ostrobogulous, adj. — Green’s Dictionary of Slang

ostrobogulous adj.

[coined by the writer Victor B. Neuburg (1883–1940). It can be ‘translated’ in a variety of ways, e.g. ‘mischievous but gorgeous’ (of children) or ‘indecent or pornographic’ (words or pictures). Neuburg’s own ety. mixed ‘full of (Lat. ulus) rich (Greek, ostro) dirt (schoolboy, bog)]

bizarre, unusual, interesting.

1995		M. Finley at Future Shoes 5 Mar. 🌐 So $22.80 per hour is an ostrobogulous amount to add to the cost of investing.
1999		Austral Vlad ‘Midseason Trash’ on US Arm Chair Basketball League (USACBL) 2 Dec. 🌐 “Ostrobogulous” is a cool word. It’s so cool it doesn’t really exist. It was coined in the mid-1800’s by Thomas Love Peacock and used only once in print. I believe it refers to one who is flabbergasted, astounded, and outraged all at the same time, or that which produces such a condition. For example, “It would be ostrobogulous to suppose The Fountainheads could be in any but last place after three weeks.”.