Mismangle

And do you suppose that Miggle's Sewer Products – they've been shamefully mismangled, if you ask me – will ever […]

Source: wiktionary

for I perceive the great work to be done is too often mismangled in committee, so lacks all identity, all measuring out into salient, songster-mongered cherishing:

Source: wiktionary

"Well, I enjoyed myself," said his wife, "but I think, how do you say it in English? I mismangled your husband a little.” “Yes, he did look a bit mismangled,” said Primrose. “What have you done with him?”

Source: wiktionary