a heads up
To give someone a warning of iminent danger, trouble or strife.
Dude - Jonny's banging Daves wife! I best call him and give him a heads up!
heads up
Advance notice of something that will need attention.
Just a heads up that the customer is likely to escalate this problem...
heads-up
1. advance notice
2. a warning
2. a warning
Just wanted to give you a heads up so you'll be expecting his call.
head up
To fight someone 1 on 1 with no one else getting involved
Yo you got beef? Lets head up
heads up
Exclamatory warning indicating that one practice increased alertness to avoid harm from a pressing threat.
Dorm Resident #1: Is that an M-80 in the toilet?
Dorm Resident #2: Heads up!!!!
*BOOOM!!*
Dorm Resident #2: Heads up!!!!
*BOOOM!!*
heads-up
a warning, especially of danger or the need to be alert
Heads-up. There's a situation out there.
Heads up
Only two players in a poker hand, typically Texas Hold 'em
That heads up round was intense