Home / Nicotine Vape Juice and Salts / MBV (Micro Brew Vapor) / MBV – Grumpy Old Bastard 3MG 100mL MBV – Grumpy Old Bastard 3MG 100mL MBV – Grumpy Old Bastard 3MG 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: 15929 Spread the love Check out our other products Sale!Skwezed Peach 0MG 100 ML Sale!Skwezed Peach 6MG 100 ML BEARD Vape Co – The One Marshmallow Milk 100mL Brewed Awakening – Classic 0MG 100mL Keep It 100 Synthetic – FTC 6MG 100mL (OG Krunch)