- very good; excellent.
Origin of bosker
First recorded in 1905–10; of obscure origin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bosker
"Wouldn't it be just bosker if one of them fell on his old nut," and going out he returned with a pair of orange clippers.Some Everyday Folk and Dawn
"I'm running up a bosker hotel soon's I can get a bit of weather-boarding and a few nails along," he said hopefully.Captivity
M. Leonora Eyles