Home / Nicotine Vape Juice and Salts / MBV (Micro Brew Vapor) / MBV – Grumpy Old Bastard 6MG 100mL MBV – Grumpy Old Bastard 6MG 100mL MBV – Grumpy Old Bastard 6MG 100mL A rich and decadent butterscotch caramel cream. To those who have experienced Grumpy; Arguably the best E-liquid flavor in America! Made in small batches with custom extractions. Categories: MBV (Micro Brew Vapor), Nicotine Vape Juice and Salts Product ID: 15930 Spread the love Check out our other products BEARD Vape Co – The One Strawberry 100mL Transistor – Galactic Milk 0MG 2x60mL Sale!Bam’s Cannoli – Strawberry Cannoli 100mL Keep It 100 Synthetic – MLOW 3MG 100mL (Mallow) Keep It 100 Synthetic – B.A.L 6MG 100mL (Berry Au Lait)