PCC is the short for Pikachu.
According to Wiki:
Pikachu are short, stocky mouse[5] Pokémon that possess short,
yellow fur with brown markings covering their backs and parts of
their tails. They have black-tipped pointy ears and light red
circles on their cheeks, which contain electrical sacs. Their tails
are shaped in the form of a lightning bolt. In Pokémon Diamond and
Pearl, gender differences were introduced for some Pokémon. For
Pikachu, the females now have a "dent" at the end of their tails
given it a heart shaped appearance.
