fire drill(Any unexpected, hurried, and particularly chaotic task, activity, event, or situation • The boss dropped a fire drill in my lap at the last minute, saying I needed to write up a 15-page report for the board by the end of the hour.thefreedictionary.comwhysa)
get moving!; move your butts!; move your butt!(междометие, как правило, выражающее призыв, стимул к работе, действию (морская терминология) an exhortation to start doing something immediately (Russian nautical jargon for "all hands on deck"))