1
general::
Phrase(s): head something out
to aim something outward; to move something on its way, head or front first. • Head the boat out and pull out the throttle. • I headed out the car and we were on our way., Phrase(s): head out (for something)
to set out for something or some place; to begin a journey to something or some place. • We headed out for Denver very early in the morning. • What time do we head out tomorrow morning?
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. Depart, begin a journey, as in The ship was heading out to sea, or When do you head out again? 2. head out after. Follow or pursue, as in Since they knew the way, we headed out after them, or A police car headed out after the car thieves.
American Heritage Idioms