someone, usually a friend that misses out on class ocasionally.
person 1: hey, why werent you in class today?
person 2: i didnt feel like waking up.
person 1: wow bueller, come to class next time.
A reference to the movie "Ferris Bueller's Day Off"
Used as filler when nobody responds to a question or statement.
Person 1: Has anybody seen my hat?
Person 2: ...
Person 1: Bueller?
From the title character in the classic movie "Ferris Bueller's Day Off".
To take time off work, in an unauthorised and if possible un-noticed way.
Most commonly to leave work for lunch with a few close friends and not come back.
Slacker1: How's it going?
Slacker2: Man. I pulled a bueller yesterday afternoon and my boss didn't even notice!