BIS
Best in slot
Example

Related Slang
Loot | Treasure |
Farming | Earning experience and items |
DPS | Damage per second |
AS | Attack speed |
AP | Ability power |
DOT | Damage over time |
AOE | Area of effect |
Buff | Strengthen |
def | Defense |
Categories
Mario & Luigi: Bowser’s Inside Story
BIS is a common shorthand for Mario & Luigi: Bowser’s Inside Story, a role-playing game (RPG) in the Mario & Luigi series released in 2009 for the Nintendo DS (NDS) console. Fans, speedrunners, and gaming communities often use this abbreviation when discussing the game in forums, social media, and video content.
The shorthand helps gamers quickly reference the title, especially since it is one of the longer-named entries in the series. It is particularly useful in online discussions about gameplay mechanics (e.g., controlling Bowser while also managing Mario and Luigi inside his body), strategies, and comparisons to other games in the franchise. Gamers also use "BIS" when talking about the 2018 Nintendo 3DS remake, Mario & Luigi: Bowser’s Inside Story + Bowser Jr.’s Journey.
Example
BIS start screen
Related Slang
NDS | Nintendo DS |
Mar10 | Mario Day |
MK | Mario Kart |
SM64 | Super Mario 64 |
N64 | Nintendo 64 |
NES | Nintendo Entertainment System |
SNES | Super Nintendo Entertainment System |
GBC | Game Boy Color |
GB | Game Boy |
VG | Video game |
RPG | Role-playing game |
Gamers use BIS to stand for "best in slot." You might encounter this acronym in gaming forums or in-game chat, when players are discussing equipable items such as armor, rings, shields, or weapons.
An item that is BIS is the best of its particular kind. Thus, it is the item a player should be looking to equip in that "slot." Which item is BIS may differ based on a character's level, class, and other attributes. So, for example, headgear that is BIS for one player may not even be usable by another.