LFK: A Fabulous Alternative
What I do know is sometimes you need a PG rated, family friendly term that is a good altermative (see what I did there?) for LFK aside from Lawrence Freakin' Kansas, Lawrence F'n Kansas, etc.
I submit for your consideration: Lawrence Fabulous Kansas / LFabK. With this you have a handy little ditty to keep in your back pocket in case your child asks about LFK, your grandmother is confused or you just don't embrace using "the swear words". Hopefully it can get you out of an awkward situation or into a healthy conversation.
All I Can Say Is
No matter how you slice it, Lawrence is the Best+1!