OK! The public has, e.g., LOL CU ROFL The Military has DOD TDY WMD Medicine has PRN RN q4h etc etc etc There4: We barefooters need our own code. Many already use BF (barefoot). On the model of TGIF...I propose TGFC (Thank God for callouses) Have a rough walk ahead? Conquering those gravel walkways? TGFC! Any others? QED!
From my hiking days: FFLH Feet feel like hamburger. Also called adjustment week out of, or oddly, into shoes.