1(1737–93), American revolutionary and politician. Noted as the first signer of the Declaration of Independence in 1776, he was a member of the Continental Congress 1775–80, 1785, 1786 and its first president 1775–77. He was governor of Massachusetts 1780–85, 1787–93.

1. 1.1as noun one's John Hancockinformal One's signature.
   I'd never given my John Hancock to a fan before