have to burn
have (something) to burn
To have something in excessive or disposable amounts. It's all fine and well to just buy a new phone if you have $600 to burn, but I'm trying to live within narrower means than that. It's a fun little attraction if you have some time to burn while you're visiting the city.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have something to burn
Fig. to have lots of something, such as money, power, food, space, cars, etc.; to have more of something than one needs. Look at the way Tom buys things. You'd think he had money to burn. If I had all that acting talent to burn as he does, I'd have won an Oscar by now.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.