An Irish-Gaelic
girl's name meaning "young doe". Possibly made popular in the 1980's by a female character,
Tegan Jovanka, from the British Sci-fi series "Doctor Who", resulting in several women from their teens to 20's with that name (as of 2007).
Dad in checkout lane 1: "Did you just call your kid
Tegan?"
Dad in checkout lane 2: "yah, why?"
Dad in checkout lane 1: "Doctor Who?"
Dad in checkout lane 2: "You know it!"
Dad in checkout lane 1: "I
grok, man".
(followed by both dads giving Vulcan or
Orkan hand sign)