paid up

idiomatic

(often hyphenated) Fully paid. / (idiomatic, often hyphenated, sometimes preceded by fully) Full-fledged, wholehearted.

Japanese Meaning

全額支払い済み（支払いが完了している状態） / 本格的な、実力のある、完全な

The paid up capital allowed the company to expand into new markets.

全額支払い済みの資本金があったため、その会社は新しい市場へ進出することができました。

Sense（1）

(often hyphenated) Fully paid.

A local Chrysler dealer had 68 paid-up back orders for cars.

Sense（2）

(idiomatic, often hyphenated, sometimes preceded by fully) Full-fledged, wholehearted.

Among Wall Street economists, Mr. Roach has not been a paid-up member of the alarmist camp.

Sense（3）