What does "buy armor top is fed" mean in League of Legends chat?

Q: What does "buy armor top is fed" mean in League of Legends chat?

It means "Buy armor, their top is fed.". Two facts in one: who is dangerous, and what to buy against him. Defense is built against the real threat, not the theoretical composition.

team chat

what you want to say

Buy armor, their top is fed.

what you type

buy armor top is fed

the context

Adapting the build to the enemy who is ahead.

What it actually means

Two facts in one: who is dangerous, and what to buy against him. Defense is built against the real threat, not the theoretical composition.

Related lines

build armor all adBuild armor, their whole team is AD.
hard matchup playing under towerIt's a hard matchup, I'll play under tower.