Steve Urkel Syndrome is a disorder in which the suspect has an extreme, almost creepy, infatuation with a person who does not wish to engage in romance with the suspect,
even attempting to actively avoid them. Common symptoms include: obsessive tendencies, dressing like a dork, social ineptness, snorting, and stalking.
Steve Urkel Syndrome is named after the Family Matters character Steve Urkel, who had a serious
lust for
Laura Winslow, who absolutely despised Steve Urkel until the
later seasons, in which they became an item.