Look out 

Made famous by the late Ronnie James Dio of Rainbow, Black Sabbath, Heaven and Hell and Dio. Dio would often shout at the top of his lungs in parts of a song "Look out!". Best used in context with a loud raspy voice while flashing the horns. Most commonly heard when describing an impending situation or event loosely connected to Heavy Metal.
"Look out" is also a phrase used in tribute to Dio, often yelled by rockers before they down a shot, take a drink or on hearing the opening riff of a Dio song.

*shot glasses poised - "Look out!" - shot drank.

*Black Sabbath's 'Mob rules' opening riff starts - "Look out!"

"Here comes that hot metal chick again, LOOK OUT!"

Look out by Rahtedpumpclart May 20, 2012

Look out!

<phrase> Warning;

A phrase intending to make another person or group of people aware of a sudden danger which they may not be aware of themselves yet.

ARMY CAPTAIN: "Look out!"
<mortar shell takes out entire squad>
ARMY CAPTAIN: "Shit."

Look out! by Stuart Fletcher January 7, 2005

look-out

An of age person who purchases alcohol for minors.

Although I never would have spoken to him otherwise, I befriended Jeremy because he was 21 and always willing to be my look-out.

look-out by lmg December 14, 2003

Look-Out

When your drug dealer has the shit you want but you got no money so you gotta call me up for a Look-Out.

My mom is broke so she needs to go get a Look-Out.

Look-Out by The_2ooter_Booter October 21, 2025

look out for #1 

Watch yourself and no one else - there is only one person thats gotta get through life with you ... YOU!

I'm cutting you lose, gotta look out for #1

look out for #1 by Miklay June 18, 2007

look out for number 1 

the nonexistent criminal boss fortniters pretend is out there and everybody needs to look out for them or implications of violence are suggested. they don't want to go to jail

Bro i wouldn't talk about him he's in the mob remember look out for number 1

look out for number 1 by SchwarzenMann October 30, 2022

look out for the cookout 

originated in chester,Pa. 19013
A good deed from one friend to another.
Cookout describes doing something for a host or for a friend doing something for you.

Jammal:Yo cuz you going to run me down to the store?
Quran: Nah cuz thats das money.
Jammal: Coem on cuz, you not going to look out for the cook out.

look out for the cookout by Ma'd Johnosn August 28, 2005