Someone who secretly observes the conversation without making any sound / presence to let everyone else know they are there. Mostly used in Discord group chat / server.
"Yo, have you heard of that girl's recent drama?"

"yeah I have heard! oh boi, it's juicy asf"

"IKR?? but maybe we-

Hey, I think someone is on their lurkuer mode here. Show yourself. We know who you are."
by Lamb Sauce maker November 23, 2021
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