Idiom: Keep One's Hair OnCheck definitions of...keeponeshaironMeaningsHow to pronounce "keep one's hair on":AU Your browser does not support the audio element. To stay calm; to be patient; to calm down.A-Z Proximitieskeep one's coolkeep one's ears openkeep one's eye on the ballkeep one's eyes peeledkeep one's fingers crossed keep one's hair on keep one's headkeep one's head above waterkeep one's head downkeep one's head on a swivelkeep one's knickers onSimilar Idiomskeep one's hair onlet one's hair downset one's hair on firetear one's hair outbad hair daycurl someone's hairget grey hair fromget out of someone's hairgive someone grey hairhair of the doghair-on-firehair out of placehair-splittinghair-splittinglyhat hairhelmet hairhide nor hairput hair on someone's chestturn a hairkeep one's cards close to one's chestSimilar Phraseskeep abreastkeep an eye onkeep apartkeep awaykeep backkeep mumkeep notekeep offkeep companykeep downkeep goingkeep guardkeep inkeep quietkeep stepkeep in linekeep onkeep openkeep outkeep pace