push panic button
an alarm button for use in an emergency, as to summon help.
press the panic button,
to give way to panic in a distressing situation.
allegedly first used in reference to emergency bell systems on World War II bombers such as the B-17 and B-24
a button or switch that operates any of various safety devices, for use in an emergency
hit the panic button
press the panic button
to react to a situation by demanding emergency action; become excited; panic
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009