/ˈrʌbər stæmp ˈsɪɡnətʃər/ – Phrase
Definition: dấu ký bằng cao su.
A more thorough explanation: A rubber stamp signature refers to a signature that is mechanically reproduced using a rubber stamp, rather than being personally signed by hand. This type of signature is often used for efficiency and convenience in situations where a large volume of documents need to be signed with the same signature.
Example: The rubber stamp signature on the contract was deemed invalid by the court.