Definition of blank cheque

The expression "blank cheque" originally referred to a signed and pre-printed bank check with no amount written on it. This type of blank check provided the intended recipient with a form that could be filled in with any amount up to the signature holder's pre-approved credit limit, thus avoiding the need to reissue a new check each time a payment was made. The "blank cheque" became a metaphorical term for granting someone unfettered authority or resources, indicating a lack of specific conditions or restrictions in an agreement. The phrase has its roots in the early 20th century when checkbooks began to feature pre-printed, numbered carbon copies that were easily and conveniently replaced. As these checkbooks grew in popularity, the expression "blank cheque" emerged to describe checks that could be written and cashed without hesitation or restrictions. In time, the phrase evolved to encompass broader ranges of unconditional support, lending or authorization that resembles the liberality and expedience of a blank cheque.