Throw money at something
Definition 1 of 2
Pro Tip 1/3Negative Connotation
Implies spending is ineffective or lazy, without addressing the root cause. 
They just throw money at the aging software instead of updating it.
Pro Tip 2/3Quick Fix Implication
Suggests a hasty solution that ignores long-term planning. 
The city throws money at the pothole problem each year, but the roads keep deteriorating.
Pro Tip 3/3Not Always Positive
In some contexts, can imply wastefulness or desperation. 
The festival organizers threw money at the problem, but the event was still a failure.