Umpa.

Jack Osterman is smitten with a woman on a park bench, and cannot stop saying the word "Umpa" for the rest of the film, which involves his treatment by a doctor and his singing and dancing temptress nurses. Somewhere between utterly silly and consummately brilliant with its fully rhyming dialogue, "Umpa" is the catchword for that enduring urge that makes people do ludicrous things with absolute determination.