Home / Nicotine Vape Juice and Salts / MBV (Micro Brew Vapor) / MBV – Grumpy Old Bastard 0MG 100mL MBV – Grumpy Old Bastard 0MG 100mL MBV – Grumpy Old Bastard 0MG 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: 15928 Check out our other products Keep It 100 Synthetic – B.A.L 3MG 100mL (Berry Au Lait) Sale!Keep It 100 Synthetic – Blue 3MG 100mL (OG Blue) Sale! Keep It 100 Synthetic – MLOW 6MG 100mL (Mallow) Pacha Mama Synthetic – Fuji Apple Strawberry Nectarine 3MG 60mL Sale!Bam’s Cannoli – Original Cannoli 100mL Sale!