First brought in from the horrors of the Naruto Thread, Candle Jack is a villain from
Ahem. As you can see, speaking or merely typing the name of this Freakazoid villain (voiced by Jeff Bennett) will result in the speaker being abducted by said villain. Thus sentences tend to abruptly end when Candle Jack's name is
A notable villain in that he had very few appearances, but was so memorable that everyone remembers the one where everyone said "Candle Jack" and disappears.
In the original cartoons nobody got kidnapped in the middle of a sentence, but that's really the only way to make the joke funny in a written format. Though the general rule is that he's nice enough to hit Submit for you on the way out.
The unfortunate fact is that, once Candle Jack's name is brought up, everyone is likely to try and then they too will be ta