get (one's) butt (some place)(redirected from get their butts someplace)
get (one's) butt (some place)
To go some place, especially directly, promptly, or with great haste (often implying that there will be consequences if one does not). You'd better get your butt to class this minute! We decided to get our butts home before our parents grounded us.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.