Mismumble

He was dictating dialogues between two American boys, and forcing his students to learn to mismumble them; just such expressions as we have all, no doubt, heard American boys use to each other daily.

In choir and cloister, gathering up dropped Syllables, mismumbled words dislodged From the liturgy by sinful clerics.

In a side remark intended for me, and which struck me like a shaft, Culpepper, as vain a fellow as ever mismumbled an author's lines, remarked to Miss Hatch that an elephant would stretch his chain to reach a bonbon.