Top definition
A slur used by unintelligent people, mostly by Sid The Sloth. Used to express a feeling of surprise and confusion.
"Wow, he just did a backflip and frontflip at the same time!"
"What De Heeck?"
by Wainwright6969 October 11, 2017
Get the mug
Get a what de heeck mug for your sister-in-law Helena.