A definitive condition in which a Garry's Mod Half-Life 2 Roleplay server shows behavior of one of the following, whether it be by intention of server administrators or not:
(1) - (Common) Several players are showing on the scoreboard, especially during high activity periods with nobody being visible on the common streets, thus figuratively "fucking around in the sewer" as Rebels which defy the oppressive, fascist Combine government of the Half-Life 2 universe.
(2) - (Dated, VoiceRP Prominent) Players are actually in the City's sewer, doing ERP, either swallowing their microphones while accessing the voice chat or writing up an entire series of long smut conversations and actions.
"Hey man, where are all the players at? It's uptime and I'm at the biggest part of the city!"
"They're doing Rebel Sewer ERP again."
"Is this game even fun to me anymore?"