Strong is an A or B grade on the powerlifting total for your age group and weight division.
Generally for able body males aged under 50 and not shaped like a poopstick, a strong guy can do 3 plates on the bench, four and half to five plates on a proper squat and five to six plates on a deadlift.
Awesome is any oly lifter of intermediate grades or above, or anyone who can do more than three plates on the clean.