The phrase "chest press" refers to a type of exercise where you push a weight or resistance away from your chest using your arms. It helps to strengthen the muscles in your chest and arms.
He loved pairing exercises like dumbbell chest presses with dumbbell rows for a classic upper body pump while still losing fat on a weight loss program. (turbulencetraining.com)
This description is given assuming the wide variations of chest press machines that you may use. (directlyfitness.com)