1 definition by Yermom Ghostuckollidge
When a rather unattractive man is dating an attractive female, an explanation could be because he has an unusually large penis AKA Slow Dick. Similar to a mentally challenged person having unusual strength (Retard Strength) it is often said that a mentally challenged make has an unusually large penis (Slow Dick)
by Yermom Ghostuckollidge September 11, 2017