"Heavy squats" refers to a weightlifting exercise where a person bends their knees and lifts a heavy load on their shoulders, targeting the muscles in their legs and buttocks. Full definition
He does heavy squats with more than 400 pounds on his shoulders. (si.com)
3 - 6 sets of heavy squats per week, and you'll be well on your way to your dream body. (muscleandbrawn.com)
When training with heavy squats, all you have to do is to master the technique and then you just increase the weight on the bar «infinitely». (ashotofadrenaline.net)