lostit Went wild Blew up Freaked out Went berserk Blew a fuse Came unglued Blew one's stack Went bananas Went postal Had a conniption Became unhinged Came unhinged Became unglued Went gaga Went ballistic Went ape Flipped out Snapped Blew one's top Went nuts Went bonkers Flew off the handle Blew a gasket