Fling
From Gempunks
When you fling a creature, you forcefully move it some direction up to a specified distance. Flinging a creature vertically is harder than flinging one horizontally, so every meter of vertical movement costs 4 meters.
When flung directly against an object, the creature takes damage as per falling a distance equal to the maximum vertical distance you could have flung that creature.
When flung, a creature must make a DC 8 Agility check or fall prone.
Since a creature is encumbered by other creatures while grappled or ridden, flinging it causes the other creatures to be carried along.