Definition of pull ups:
(v) :
Used other than figuratively or idiomatically: see pull, up.
(v) :
(transitive, intransitive) To lift upwards or vertically.
(v) :
To pull forward.
(v) :
(intransitive, aviation) To raise the nose of an aircraft.
(v) :
(idiomatic) To fetch for display on a screen.
(v) :
(idiomatic, especially of a vehicle) To arrive at a halt; to approach and stop at a particular point.