What does "jgl top side bot play aggro" mean in League of Legends chat?

Q: What does "jgl top side bot play aggro" mean in League of Legends chat?

It means "Their jungler is top side, play aggressive bot.". "play aggro" means play aggressively. Jungle information is only worth something if it changes a decision: here, the opposite lane can trade safely for thirty seconds.

team chat

what you want to say

Their jungler is top side, play aggressive bot.

what you type

jgl top side bot play aggro

the context

Turning jungle tracking into a lane instruction.

What it actually means

"play aggro" means play aggressively. Jungle information is only worth something if it changes a decision: here, the opposite lane can trade safely for thirty seconds.

Related lines

jgl top sideThe enemy jungler is top side.
care jgl starts your sideCareful, their jungler starts on your side.