1) A person that acts like a complete asshole.
2) Someone compleatly lacking a mental filter of any kind
3) An annoying person that has no respect for anyone else, yet can command the respect of others through pure stupidity
Sweetie Belle is a unicorn, the sister of Rarity, and one of the three members of the Cutie Mark Crusaders in the series My Little Pony: Friendship is Magic.
Person 1: Have you heard of Sweetie Belle?
Person 2: Yeah! she's so cute *Squee*
Sweeney Todd is a musical about The Demon Barber of Fleet Street.
He is a barber who, in vengence over his supposedly dead wive, co-opens a business partnership with his friend where he kills his customers and she pops them into pies.
Attend the tale of Sweeney Todd.
His skin was pale and his eye was odd.
He shaved the faces of gentlemen
Who never thereafter were heard of again.
He trod a path that few have trod,
Did Sweeney Todd, The Demon Barber of Fleet Street