DEF-Up

DEF-Up is a positive status condition that has appeared in several Mario RPGs. It stands for "Defense-Up".

Mario & Luigi: Superstar Saga
Green Peppers boost defense in this game, meaning enemy attacks will do less damage to Mario and Luigi. The status is indicated by a gray box with an arrow pointing up next to the Mario brother's HP.

Paper Mario: The Thousand-Year Door
In this game, several items and the Crystal Star power called Power Lift can raise defense. The DEF-Up status is indicated by a gray diamond with an arrow pointing up above Mario or his partner. Enemies can have this status effect, also.

Mario & Luigi: Partners in Time
Green Peppers appear again in this game, although they affect both fighters currently active. DEF-Up is indicated by an expanding green circle around the attacker.