What is another word for most goofed?
Pronunciation: [mˈə͡ʊst ɡˈuːft] (IPA) 
When it comes to synonyms for "most goofed," there are plenty of options to choose from. Some common alternatives include "biggest mistake," "worst blunder," "major error," "epic fail," "colossal goof," "monumental slip-up," and "catastrophic misstep." Other useful synonyms might include "serious flub," "critical error," "grave blunder," "significant oversight," or simply "the most disastrous mistake." Whatever phrase you choose, it's important to accurately convey just how serious and significant the mistake was, and to choose a term that effectively communicates the scale of the error.
