RUSOS

RUSOS is an incredibly condescending question that will most likely hurt the recipient's feelings. The question implies that the recipient is slow, gullible, or did something stupid.

Most people send RUSOS when texting or messaging online on social media or in a chatroom. The recipient may have recently made a simple mistake, asked a dumb question, or done something irresponsible.

RUSOS is a cruel way to respond to someone's mistake or error, and it borders on verbal abuse. If it is not sent playfully, you should call the sender out on it instead of taking their abuse.