K-P-C-O-F-G-S

A mnemonic for the levels of classification (Kingdom, Phylum, Class, Order, Family, Genus, and Species.)

K - Kevin
P - Please
C - Come
O - Over
F - For
G - Gay

S - Sex

This mnemonic first appeared in the very beginning of the episode of Community titled Virtual Systems Analysis. (Season 3 Episode 16)

"There are many acronyms to remember K-P-C-O-F-G-S, some being more appropriate than others."