ポコペン
Meanings
1
impossible; futile; no use
usually written using kana alone
Interjection expressing that something is hopeless or pointless. Derived from Chinese 不彀本 (bùgòuběn), meaning 'not worth it' or 'can't break even'. Used in casual, often old-fashioned or slangy contexts.
from Chinese bùgòuběn
It's no use anymore. Let's give up.
2
children's game (type of)
A specific children's game, though details are obscure. The term itself may be used as the name of the game.
It seems that children used to play a game called pokopen in the old days.
3
derogatoryobsolete term
Derogatory and obsolete term for a Chinese person. Highly offensive; included only for recognition in historical contexts.
The derogatory term 'pokopen' sometimes appears in pre-war documents.