What is Chimpokomon?
1.
"Chinpoko" (and also "chinpo") is a children's euphemism for "penis" in Japanese, much like "wee-wee" in American English. Chinpokomon originates from the words chinpoko and Pokémon Chinpokomon literally means Penis Monster(s).
Chimpokomon! Purchase them all!
See
2.
South Park's parody of Pokemon
"I am going to be a Chimpokomon Master"