- It is a simple substitution cipher using the language of Kenny McCormick.
A- mmm N- ppp
B- mmp O- ppf
C- mmf P- pfm
D- mpm Q- pfp
E- mpp R- pff
F- mpf S- fmm
G- mfm T- fmp
H- mfp U- fmf
I- mff V- fpm
J- pmm W- fpp
K- pmp X- fpf
L- pmf Y- ffm
M- ppm Z- ffp