A genetic condition where an individual is born without a grundle, thus their anus and scrotum/vagina touch each other.
Person 1. "I heard Tyler has grundleitis."
Person 2. "What???"
Person 1. "He was born without a grundle."
Person 2. "What???"
Person 1. "He was born without a grundle."
by WowDad August 05, 2011