Definition of “pull away” - Learner’s Dictionary

pull away

phrasal verb with pull uk us /pʊl/ verb
START MOVING

If a vehicle pulls away, it starts moving:

I just managed to get on the bus before it pulled away.
MOVE BACKWARDS

If you pull away from someone who is holding you, you suddenly move your body backwards, away from them.

(Definition of “pull away” from the Cambridge Learner's Dictionary © Cambridge University Press)