Body Slam is a recurring skill in the Dragon Quest series that first appeared in Dragon Quest IV as an enemy-exclusive ability before becoming a player-usable skill in later installments. Upon use, it attempts to reduce both the user and target's HP by around 80%. Be wary of using this skill, as the player will still take damage even if they miss their target.
Body Slam is learned by several monster companions such as the Rockbomb. As the skill shares the same resistance tag with Kamikazee, only the Pink elephant, Blizzybody, Necromancer, Hades' helm, Hyperpyrexion, Mandrake marauder, Bomboulder, Moosifer, Balhib, Archdemon, Great dragon, Deathsquad, Mechan-o'-wyrm, Barbatos, Bilhaw, Metal slimes, and boss monsters have any resistance or immunity at all.
Body Slam has the same parameters as in the previous game, and can only be learned by Ruff at level 6, possibly due to fan criticism of the skill and the removal of the Merchant vocation. In the 3DS version, Body Slam can be learned by the Sailor vocation at the second rank.
This ability is learned with 48 skill points invested into Courage skill. It is very useful for Quests that require a character to be at low health, giving it some added functionality.