HOW: Start laying flat on your back with your knees bent to at least 90 degrees. With weights or objects supported in each hand, bridge up by lifting your hips off the ground. While holding the top of the bridge position, perform a bench press motion with your arms, lower your arms all the way down until they touch the ground and repeat. Your arms can be angled 45 degrees from your torso, or however you prefer.
FEEL: This should feel like a full body workout, your glutes will be working to keep your hips off the ground, your core will be working to keep your torso still and tight, and your arms will be working with the floor press.
COMPENSATION: Do not lose the top of the bridge position, do not let your hips sag, do not let your back excessively arch or bend. All of the same rules apply with a regular floor press form, at the top of the press the weights/objects should be positioned over your shoulders.