Definition of heads-up:
°A warning or call to pay attention; an
advisory notice.
"Send everyone a heads-up about the inspection tomorrow."
°With head directly above the neck, eyes front.
"A heads-up posture meant the pilot couldn't pay attention to his instruments."
"Getting those marbles off the red carpet was a real heads-up move."
Definition of heads-up:
°A warning or call to pay attention; an
advisory notice.
"Send everyone a heads-up about the inspection tomorrow."
°With head directly above the neck, eyes front.
"A heads-up posture meant the pilot couldn't pay attention to his instruments."
"Getting those marbles off the red carpet was a real heads-up move."