Definition: Adjective. Something strange or bizarre; also something mildly indecent or risqué.
Etymology: The word was coined by Victor Neuburg, an English poet and writer ( 1883 – 1940). The word, literally translated means “full of rich dirt,” is formed from the Greek word ostro (meaning “rich”) and the English word bog (meaning “dirt”) and the Latin diminutive suffix -ulus (meaning “full of”).
For further reading: www.worldwidewords.org/weirdwords/ww-ost1.htm