Adjective/Noun: The word for when there are no words, particularly for a person to describe their reaction or the emotions they are feeling, especially shock or elation.
Before he could catch his breath from just having won Olympic gold, the athlete answered the interviewer's trite question of how it felt to win with, "I'm at a loss for words. I can only say I'm kleblucken."
by Tommy Kaye February 19, 2018