Full as F*ck Enhances muscle pumps Reduces fatigue Improves athletic performance Full As F*ck is a stimulant-free pre-workout supplement that contains highly dosed ingredients guaranteed to give you a great pump. An excellent muscle pump can transform your physique right before your eyes, forcing your muscles to look full and firm. There’s more than just a visual benefit to a great pump because the extreme increase in blood flow carries needed nutrients and oxygen to your working muscles so you can perform at your best all workout long.