1. What does bio mean in StarCraft 2?

Biological units

StarCraft 2 (SC2) players use bio as shorthand for biological units. Most often, players use this abbreviation to refer to Terran biological units, such as Marines and Marauders, and strategies that rely on those units.

For example, you might see SC2 players discuss bio play, a strategy that involves building squads of Marines, Marauders, and Medivacs (MMM) and using their firepower and mobility to unleash pronged attacks.


I'm going to go mass bio this game instead of building mech units
A Terran player discussing the merits of bio and mech strategies
A Terran player discussing the merits of bio and mech strategies

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Updated June 27, 2023
2. What does bio mean?


A slang term for bathroom, but actually comes from the word "biology," which refers to the natural process of having to go to the bathroom; understood in gaming settings to mean someone is taking a bathroom break.


Alright guys, take a quick 5 min bio break, and then we'll hit the next boss

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Updated June 13, 2016
3. What does Bio stand for?

Bring it on

You can use BIO to taunt someone online or in text messages when ready to battle with them. It stands for "bring it on," which is another way to say, "give me your best shot."

Where did BIO come from?

The phrase "bring it on" became popular in the late-1990s, peaking in popularity when a movie about competitive cheerleading by the same name was released in 2000. It was shortened as "BIO" when people began chatting and gaming more online in the 2000s.

When is BIO used?

Gamers may use BIO right before or during a competition to taunt their opponents. Games in which you may see BIO include WoW, LoL, DnD, Fortnite, COD, and DotA.

Others may use BIO in texts or on social sites or chatrooms when getting pumped up for a challenging exam, big competition, or another nerve-wracking event. In these cases, they are probably experiencing an adrenaline rush or the effects of steroids and may be easily excitable, so watch out.


BIO big boy! Let's see what u got!

When you are ready for your opponent to BIO

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Updated April 27, 2021

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This page explains what the slang term "bio" means. The various definitions, examples, and related terms listed above have been written and compiled by the team.

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