Lighting a fire 

Lighting a fire under somebody's ass isnt a way to get somebody to do their job better, it's a way to try and scare someone into doing what you want them to do for you. It always has been.

People could do without someone trying to go around lighting a fire under people's asses.

Lighting a fire by Solid Mantis January 11, 2021

Lighting a fire 

Trying to force someone else to become compliant with, or get in line with your agenda/policies, especially somebody who regularly tells you to go fuck yourself.

He/she tried lighting a fire under the guy's ass when not taking the word no or the words go fuck yourself for a legitimate answer wasn't working.

Lighting a fire by Solid Mantis January 20, 2021

Lighting money on fire 

Spending money freely, like crazy, financially irresponsible people do

If you want a good retirement income, stop lighting money on fire, even if you bring home lots of it.

Lighting money on fire by Uncle Dimma June 3, 2021

Lighting my children on fire 

Ejaculating in a red head's hair.

Dude, I love lighting my children on fire.

Lighting my children on fire by Father of barbecue May 27, 2017