The phrase "...they will run the Devil bowlegged keeping up with their mischief" is hyperbole.
What is Hyperbole?
Exaggeration used as a figure of speech or rhetorical device is known as hyperbole. It is also occasionally referred to as auxesis in rhetoric. Hyperbole is a figure of speech in which emphasis or dramatic effect are conveyed through exaggeration.
The expression in this instance exaggerates the degree of mischief and misbehavior by implying that it would be so severe and unrelenting that even the Devil would become bowlegged from attempting to keep up with it.
complete question;
"...they will run the Devil bowlegged keeping up with their mischief" (27). the part of speech of the phrase is?
crucible
metaphor
simile
hyperbole
Onomatopoeia