Sou0 Code originated from someone making a typo of "soup," therefore inspiring the "Sou0 Code," in which the rule Q=1 W=2 E=3 R=4 T=5 Y=6 U=7 I=8 O=9 P=0 takes place.
Person 1: B49 5ha5's s9 c48ng6
Person 2: what the heck is that
Person 3: Sou0 Code