"Careless spending" refers to spending money without considering the consequences, often done impulsively or without thought. It implies wasting or squandering money on unnecessary or frivolous items or activities. Full definition
I'm sure there's at least an extra $ 1,000 that's slipping through my fingers every year because of careless spending during my good months and credit card debt during bad months. (businessinsider.com)
Though credit cards are often the source of trouble, mortgage debt, student loans and careless spending habits can also contribute to the problem. (debt.org)
Did you know if you max out your credit cards or default on student loans because of careless spending, it can take a major hit? (effectify.com)