What does do sit-ups mean?
do sit-ups
Definition
To lie on your back and lift your upper body toward your knees, again and again, as an exercise.
Example sentences
I can't do sit-ups on the bare floor, it hurts my back. Pass me an exercise mat.
I can't do sit-ups on the bare floor, it hurts my back. Pass me an exercise mat.
He can do sit-ups for five minutes without stopping, and it's annoying.
He can do sit-ups for five minutes without stopping, and it's annoying.