A terrible syndrome in which one is born after someone, but someone was born after them as well, making them the in between of their siblings. The only known cure is MURDER, and it NEVER fails. Most common symptoms are crying, being easily annoyed, and being tall BUT not as tall as the oldest child. If you have this or know someone who does, call your doctor or therapist IMMEDIATELY.
Person: did you hear about that classmate who went crazy and killed their siblings?
Person 2: Yeah. They had Middle Child Syndrome, it sucks ASS
Person 2: Yeah. They had Middle Child Syndrome, it sucks ASS
by I_am_froggychair June 26, 2021
Get the Middle Child Syndromemug.