Elbow Swing

The pictured forehand uses a full body motion. Looks more like a contortionist performance with a very flexible elbow + wrist, than an Ultimate player.

Queensland Open Championships (March 2012, Australia) [WhattheTim]

Some Signs of a Player not using their Elbow when Throwing a Forehand [ThinkUlti]

• The disc turns over in flight (too much outside in)
• The player thrusts their hips forward and shoulders back as they throw a forehand.
• The elbow remains close to the waist before or after the throw.
• The player cannot throw a wide forehand.
• The player is using a split finger grip (so they can hold the disc out horizontally, without it flopping down). Holding the disc vertically removes this need...

Practice a forehand throwing motion several times & then throw, emphasizing 2 things:
1. Rolling your wrist under, not over, so it finishes palm up
2. Moving your elbow through