A made-up or informal way of speaking that is specific to a certain group or community.
Slanguages can be fun and help people feel like they belong to a group, but they can also make it hard for people outside the group to understand.
Examples:
They use slanguages to talk to each other.
The kids have their own slanguages.
I don't understand their slanguages.
Their slanguages sound like a secret code.
In their slanguages, they can say things no one else understands.
The slanguages of the group make them feel special.