heads up meaning?

Question

What's the meaning of "heads up" idiom? Please give me some examples!

Answer 1

 

heads up - Examples:

1)  Come on, heads up! This is not a drill.
2)  Wow, I didn't realize that. Thanks for the heads up! ". That's where it could have ended.
3)  Thank you so much for the heads up on the baggage costs as I will be taking a trip with Continental Airlines soon.
4)  It would've been nice to have more of a heads up so that we could prepare.
5)  As a double bonus we also get a heads up on what the idiot ranch is coming up with next.
6)  Thanks for the heads up on this fascinating world of expired domains.
7)  But thanks for the heads up on the Google Mail thing.
8)  Thank you for the heads up. I am glad to have the information.
9)  I must say your website has given me the heads up.  I need to understand this exciting field.
10)  I sometimes give the teen librarian a heads up on the latest and possible hit series to add to the manga section.
11)  Just giving y'all a heads up ahead of time.
12)  She has been doing well with it. We kinda got a heads up about it at our 2 month check up.
13)  Let us know if you want a heads up for the next E. Sandy Powell title!
14)   I suppose I better give my lawyer a heads up then.
15)  It may be helpful to have a heads up on what we are going to be enduring.
16)  Hi just wanted to give you a brief heads up and let you know a few of the pictures aren't loading properly.
17)  Thank you for going in-depth with this subject and the heads up with regard to the pinging sites.
18)  Thanks for the heads up to look at the producer's tweets.
19)  It's only fair that you give them the heads up that something that's about to change the literary world forever.
20)  Our thoughts and prayers are with you. Thanks for the heads up on the Evertalk memorial page Christina.
 
 
 

Answer 2

heads up - Gerund Form:

Giving someone the heads up could save them from something unexpected.
 

Answer 3

heads up - Usage:

 
formal<---------------|----X----------->informal
 
Heads up is often used in the imperative form.

Heads up!

 

Answer 4

Idiom Scenario 2:

Two boys are sitting in the park ...

One boy is about to throw a ball to the other boy who is not paying attention and is not ready to catch the ball.
As the first boy is throwing the ball to the other boy he calls out ...
Heads up!
to give the other boy a chance to be ready to catch the ball.

Answer 5

Idiom Scenario 1:

Two coworkers are talking ... 

Coworker 1:  How was your meeting with the boss?
Coworker 2:  Pretty good.  I really need to tell you something, though.
Coworker 1:  What's that?
Coworker 2:  Looks like the boss has decided to move the product launch up by a week. 
Coworker 1:  Thanks for the heads up.  I really need to get to work if I'm going to be ready a week early.

Answer 6

Idiom Definition:

"heads up"

to give advance warning of something

 
Synonyms: active, all ears, bright, cagey, careful, circumspect, clever, fast on the draw, good hands, heedful, hip, intelligent, jazzed, observant, on guard, on one's toes, on the ball, on the job, on the lookout, perceptive, psyched up, quick, ready, sharp, spirited, switched on, vigilant, wary, watchful, wide-awake, wired, wise, with it