Bro did you see Ethan the other day he was making out with some Fub he took home from the bar .What’s a Fub bro a Fat ugly bitch
by Yourmomsman08 December 30, 2022

The individual in a group chat who constantly posts inappropriate messages and delights in the grotesque and bizarre.
He just a pulled a FUB, why is he in our group chat?
You don’t want to be in their friend group, just a bunch of FUBs.
You don’t want to be in their friend group, just a bunch of FUBs.
by Wanderlust4life January 19, 2022

A group of people who has no sense of honesty or intelligence.
A nimcapoops, fools, or just plain stupid.
A nimcapoops, fools, or just plain stupid.
by BIGDAWGD69 April 11, 2022

Something that is impressive, but when someone rejects how impressive it is they are attacked via social media and cancelling.
Person A: "Ey, That's Fub man"
Person B: "It's a drawing dude, it's not that impressive"
Person A and C: "So you have chosen, death..."
Person B: "It's a drawing dude, it's not that impressive"
Person A and C: "So you have chosen, death..."
by Emerson Jydestein February 3, 2021

LLM FUB (Fuck U Blind) Syndrome:
A catastrophic form of LLM content drift where output diverges so aggressively from prompt constraints, prior context, or intended task objectives that user alignment is effectively obliterated. Often occurs in long inference chains, poorly grounded systems, or under adversarial prompting. A LLM FUB syndrome event leaves the operator or downstream systems disoriented, misled, or compromised.
A catastrophic form of LLM content drift where output diverges so aggressively from prompt constraints, prior context, or intended task objectives that user alignment is effectively obliterated. Often occurs in long inference chains, poorly grounded systems, or under adversarial prompting. A LLM FUB syndrome event leaves the operator or downstream systems disoriented, misled, or compromised.
1. “I was asking the model to summarize a news article and it started talking about ancient Sumerian gods. Total LLM FUB syndrome.”
2. “Dude, we were fine until turn 14 of the chat—then it LLM FUB’d and started roleplaying as a sentient dishwasher.”
3. “Careful chaining those prompts too long. You’ll trigger a LLM FUB event and end up in unicorn conspiracy land.”
4. “The model was aligned… until it LLM FUB’d hard and told the CEO to ‘touch grass.’”
5. “We’re deploying a new drift detection layer. Last week’s production model LLM FUB’d during a legal summary and started quoting Shakespeare.”
2. “Dude, we were fine until turn 14 of the chat—then it LLM FUB’d and started roleplaying as a sentient dishwasher.”
3. “Careful chaining those prompts too long. You’ll trigger a LLM FUB event and end up in unicorn conspiracy land.”
4. “The model was aligned… until it LLM FUB’d hard and told the CEO to ‘touch grass.’”
5. “We’re deploying a new drift detection layer. Last week’s production model LLM FUB’d during a legal summary and started quoting Shakespeare.”
by BobSolo March 24, 2025
