"In Game Leader", or more casually called the caller is a person on a gaming team, mostly "Counter-Strike" who tells the team what to do, where to go, makes all the decisions.

In-game Leader

Originating from the lovely city of Frisco, Texas, "IGL" is an acronym meaning "I get laid" or "I got laid", depending on how it is used. A spin-off of this is "UGL", meaning, of course, "you get laid", used as a question. Used mostly as a joke, such as when a girl asks to borrow a pencil in class and you turn to your friend and excitingly proclaim "IGL!"

Internet abbreviation used in gaming for "I got lucky". IGL is used when it is quite obvious a game was won on luck, rather than skill.

To cut at an uneven or jaunty angle.

I'm genuinely laughing

Opposite to IRL.

Means: In game life.