This phrase is casual and mainly used in informal conversations or in the media for impact.

Colloquial Usage

It's a metaphor suggesting the ease of making money as if one could literally print it.

Metaphor

Understand that it's an idiom, not to be taken literally, but to emphasize profitability.

It can be used to criticize situations where profit is made in ways perceived as unfair or unethical.

May be used to discuss economic policies or business strategies in professional or academic settings.

Often associated with government concessions or policies that favor certain businesses.