Sponge on Discord

What it signals here

server usage

Used in study servers to signal someone is in deep learning mode or lurking to absorb information

reaction use

Reacted to messages full of useful information — 'noted, sponging this'

emote mapping

Custom emote in many servers representing a clueless or absorbing member

gaming context

Used to describe a player who soaks up damage or who copies others' playstyles

role meaning

Some servers use 🧽 as a role icon for new members who are still absorbing server culture

See it elsewhere