pencil case; pen pouch
A small case or pouch for holding pens and pencils. Wasei-eigo from English 'pen pouch'; in English usually called a pencil case.
wasei-eigo (Japanese-coined English), from pen pouch
I bought a new pencil case.
How many pens do you keep in your pencil case?
Variant spelling with an interpunct; less common but still seen.
Wasei-eigo from English 'pen' and 'pouch'. The combination is not standard in English, where 'pencil case' is the usual term.