What is Frf?
Not commonly seen, can be found when someone mis-spells "lol" to become "kik" (the letters directly left of it), then "juj", "hyh","gtg", and eventually FRF.
OR
Direct typo of "gtg".
lol
kik
juj
hyh
gtg
frf
See lol, ;p;, kik, juj, hyh, gtg, frf, ded, noob