buy a pig in a poke

Fig. to buy something without looking inside first. If you don't get a good look at the engine of a used car before you buy it, you'll wind up buying a pig in a poke. I just took the salesman's word that this camera worked. I guess I bought a pig in a poke.

Common Names:

Name	Pronounced	Usage
Ifan	-	Welsh
Chisomo	chee-SO-mo	Southern African, Chewa
Koloman	KO-lo-mahn (German)	German (Rare), Slovak
Finbarr	FIN-bar	Irish
Cande	-	Spanish
Pipaluk	-	Native American, Greenlandic