To throw caution to the wind. IDGAF for respectable and/or moms of the boomer era and beyond. A flashback to the days of the mother as the homemaker and sole keeper of the kitchen. Not necessarily dangerous and not always a mom, an act just a bit out of character for any cautious person.
Joan asked Doris if she was sure she could drive after having those fortified cocktails, to which she responded, "meh, let the roast burn!"

"We told them we'd be back by 5."
"But we have two more thrift stores to hit."
"Ah, let the roast burn!"
by the Momur November 15, 2019