Bueller

Etymology
From the movie Ferris Bueller's Day Off. Ben Stein's character, when doing roll-call, called "Bueller" multiple times with no answer, as Ferris Bueller was absent.

Interjection
Bueller


 * 1) Expression used to convey waiting for a response when there is none.
 * Does anyone want to go to the movies? Bueller? Bueller?