Calque of English paper tiger, which in turn is a calque of Chinese 紙老虎 / 纸老虎 (zhǐlǎohǔ).
tigre nga papel (Badlit spelling ᜆᜒᜄ᜔ᜇᜒ ᜅ ᜉᜉᜒᜎ᜔) (idiomatic)