turn on a penny 

To have a turning radius slighty larger than that of a dime, but smaller than that of a nickel.

Not as impressive as being able to turn on a dime, but still, not bad.

My new car goes from 0 to 58 in a really short amount of time, and can turn on a penny.

turn on a penny by Lady Chevalier June 13, 2005

Turn on your ears 

To listen or hear with intention.

"Hey! Turn on your ears and pay attention!"

Turn on your ears by Zehn_Master January 27, 2010

turn on the dark

To turn off the lights, draw the blinds, etc. To create darkness in the room, as opposed to turning on the lights.

We're going to watch a movie, TURN ON THE DARK!!

turn on the dark by benchtrix May 16, 2015

turn on the Cosby Show 

The act of turning off the television.

Wife: I'm going to bed, could you turn on the Cosby Show?
Husband: Sure, honey.
Turns off the television

turn on the Cosby Show by jibe February 5, 2007

"Turn on the hate" 

This is a request to have the car radio tuned to the local conservative AM radio for the latest traffic and weather conditions. Usually asked two-minutes before the those reports are schedule to be announced, ex: at 7:48am for the 7:50am update. One must listen to two minutes of bile spouted by the conservative show-hosts while you wait for the useful information. Inspired by the "Two-Minute Hate" described by Orwell in "1984".

"Turn on the hate", looks like traffic is slowing down up ahead.

"Turn on the hate" by Ula Barber January 28, 2009

Turn on the sink 

Used when preparing to tell a secret or something no one else needs to know about.

"Ayo, turn on the sink, i got a kilo in the car."

Turn on the sink by Gee dang it May 10, 2019

turn on location 

A common phrase in the subreddit /r/popheads, usually used to express anger and disagreement over somebody's music choices and/or opinion.

A: Taylor Swift's album 'reputation' is not a bop.
B: Turn on location.

turn on location by macho760 December 10, 2017