turn off

turn off  {v.}

1. To stop by turning a knob or handle or by working a switch; to cause to be off.

He turned the water off.

He turned off the light.

2. To leave by turning right or left onto another way./

Turn off the highway at exit 5.

The car turned off on Bridge Street.

3.  {slang}

To disgust, bore, or repel (someone) by being intellectually, emotionally, socially, or sexually unattractive.

I won't date Linda Bell anymore — she just turns me off.

Contrast: TURN ON.