a small sum of money carried or kept in reserve for minor expenses, emergencies, or impulse purchases.
a small sum of money carried by a woman on a date to enable her to reach home alone in case she and her escort quarrel and separate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use mad money in a sentence
Let me remind you of WaPo's excellent "mad money" page, which tracks all the TV spending with ridiculous precision.
Later that day, Cramer, on mad money, simply avoids the subject, save the odd joke in the clip below.