BCI community slang for the frustrating cognitive delay that occurs when your biological brain processing falls behind your neural interface's data throughput — the sensation of your meat-mind struggling to keep up with what your chrome already knows. First documented in the Deeplink forums around 2204 among heavy BCI users in Tier 2-3, it describes a specific dissociative feeling: your augmented systems have already processed and responded to something before your conscious awareness catches up. Severe meatlagging can cause momentary identity disorientation, and chronic sufferers describe feeling like a passenger in their own body. Colloquially extended to mean any situation where a person's instincts or emotions are slower than their circumstances demand.