bbl
noun
Definitions
A round vessel or cask, of greater length than breadth, and bulging in the middle, made of staves bound with hoops, and having flat ends or heads. Sometimes applied to a similar cylindrical container made of metal, usually called a drum.
Example: a cracker barrel
The quantity which constitutes a full barrel: the volume or weight this represents varies by local law and custom.
A solid drum, or a hollow cylinder or case
Example: the barrel of a windlass; the barrel of a watch, within which the spring is coiled.
A metallic tube, as of a gun, from which a projectile is discharged.