do one's nut

lose it explode flip flare-up see red blow a fuse hit the roof fly off the handle freak out have a fit boil over go ballistic throw a fit hit the ceiling have kittens

chill out rest recover relax chill repose

do one s nut

do one's level best do one's most do one's no manners do one's nut in do one's own thing do one's own time