MFLB 

Magic Flight Launch Box. A portable, hand-held vaporizer, suitable for stealth smoking.

I dropped the MFLB in my pocket when the cop car passed.

MFLB by tgjer November 30, 2010

MFLB 

Magic Flight Launch Box... is the ultimate portable vaporizer! It is completly silent and stealth! Combine the stealthness with the no smoke vapor, you get the best of your herbs anywhere

Man! What a fuckin rough morning...thank god I brought my MFLB for lunch!

MFLB by TehArchitect November 29, 2010

MFLB 

M.F.L.B also stands for "More Fat, Less Blond"

Eating genetically modified (GM) food could make you MFLB

MFLB by Empula November 9, 2012