Wiktionary
vb. to tilt something up in order to discharge its contents
Usage examples of "tip up".
And in the moonlight and starlight, as Tip floundered to his feet a leather-clad arm snaked about his neck, forearm against the buccan's windpipe, and someone snarled and jerked Tip up off the ground and wrenched him back and forth, trying to break the Warrow's neck.
Bringing the tip up to the banded wooden surface of the door, Baralis began to utter the appropriate words of warding.
The curve of the bow brought the free tip up under the ore's chin, and Catti-brie kept the pressure on as she turned around, reversing her grip and pressing forward.
THE CURVE OF THE BOW BROUGHT THE FREE TIP UP UNDER THE ORE'S CHIN, AND CATTI-BRIE KEPT THE PRESSURE ON AS SHE TURNED AROUND, REVERSING HER GRIP AND PRESSING FORWARD.
Hobie twisted the hook, which relieved the pressure on the guy's voice box, but brought the tip up into the soft area under his ear.