Meaning of the word "a full purse makes the mouth to speak" in English

What does "a full purse makes the mouth to speak" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a full purse makes the mouth to speak

US /ə fʊl pɜrs meɪks ðə maʊθ tu spik/
UK /ə fʊl pɜːs meɪks ðə maʊθ tuː spiːk/
"a full purse makes the mouth to speak" picture

Idiom

when a person has a lot of money, they become more confident, outspoken, or boastful

Example:
Ever since he won the lottery, he won't stop bragging; truly, a full purse makes the mouth to speak.
He used to be quiet, but now that he's rich, a full purse makes the mouth to speak.