Tripping Twirl

Combat

You can make a trip attack with a quarterstaff on all adjacent enemies.

Prerequisite: Int 13, Combat Expertise, Improved Trip, Tripping Staff, Weapon Focus (quarterstaff), Weapon Specialization (quarterstaff), base attack bonus +12.

Benefit: As a full-round action, while wielding a quarterstaff two-handed, you can attempt a trip combat maneuver against each enemy adjacent to you.

Special: If you are a magus with the staff magus archetype, you can use spellstrike on any one trip combat maneuver you make with the staff.

Source: Ultimate Magic