BBL

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bbl

(design engineering)

barrel

1. A weight measure for portland cement in the US, corresponding to 376 pounds net; this measure is now obsolete.
2. (US) A vessel which holds 311/2 gal of liquid.
3. That portion of a pipe having a constant bore and wall thickness.

BBL

(chat)
(I will) be back later.

BBL

"Be back later." See digispeak.