I pulled beyond the empty slot and backed up into it.

Close off your stop valves so you don't get water backing up into the forward lines.

As a result, some of this waste water could be backing up into your sink.

This suggests that blood may be backing up into the body.

He reached for her again, but she shook him off and backed up quickly into the corridor.

As you may remember, seven weeks ago the sewer backed up into my apartment.

They were backing up into the shadows of the kitchen.

Just by chance we back up into you with those twin screws.

Fluid can back up into the lungs, leaving people short of breath.

He backed up the wall into a standing position, took a last look at the Astronomer, and headed toward the street.