Look, I am off the Bronco bandwagon as much as anybody, but if you use a Yewt euphemism when talking about BYU's coach, I cannot take you seriously.
Donco. LOL! It's not even creative. It's what a 5 year year would do. "Bronco. Sonco. Ronco. Clonco. I know--Donco!"
"Ky-perbole" Now there's a good derisive nickname that incorporates the coach's name with a ridiculous part of his personality.