Bang for your buck Definition 1 of 1Pro Tip 1/3Cost Efficiency Emphasizes getting the most usage or benefits from the amount spent. I bought a multifunctional appliance to get the best bang for my buck. Pro Tip 2/3Informal Context Used in casual conversations rather than formal writing or speeches. When buying a laptop, I always look for the best bang for my buck. Pro Tip 3/3Comparative Choice Often used when comparing products or services to suggest a good deal. Out of all the subscriptions, this one offers the most bang for your buck.