Another definition for a catmum: Playing games when toxic kids join and start spamming words usually like "EVERYBODY IS TOXIC" or bypass game's filter, especially ROBLOX.
DoominatorSlayer123: Guys, this kid is spamming.

Sanctionist: Don't mind him.

the catmum: "EVERYBODY IS TOXIC"

"EVERYBODY IS TOXIC"

"EVERYBODY IS TOXIC"
by cumming tornado September 7, 2021
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A typical 5-year-old wannabes childish motherfuckers especially on ROBLOX attacks players/games in a foolish way that they poorly can define an insult against normal users. Some of them are likely 9-13 year olds with no life and zero-tolerance, dignity, etc. They intend to be annoying cunts on some popular games. When you come across one, the chat will be filled with "catmum" from users attacking back at them or person.
jackson98939: This game is ugly. I wish is was more special than rachel92928's house.
VioletCrimson: catmum
by your_dick_is_on_fire May 23, 2021
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