The Dragoon Wall Glitch is a glitch in Super Smash Bros. Brawl. It occurs when a character is hit by the Dragoon at extremely high percent (150%+), and the victim hits a wall. The character will become stuck in the wall, during which time it will be invincible. After around five seconds, the rest of the knockback will be received (and probably be KO'd).
This glitch was discovered by Crystallagiacrus, and works best on a Custom Stage.