What is the meaning of the expression
BACK AND FORTH?
go short distances in one direction and then in the opposite direction, over and over again
1. Her father walked nervously back and forth outside her hospital room.
2. I went out to my car and then realized that my sunglasses were in the house. So I ran back into the house to get them. Then, when I got back to my car I realized that I had left my car keys on the table so I had to return to the house again. I wasted almost 10 minutes running back and forth!