Idiom: Have One's Back UpCheck definitions of...haveonesbackupMeaningsHow to pronounce "have one's back up":AU Your browser does not support the audio element. To be angry or defensive.A-Z Proximitieshave more chins than a Chinese phone bookhave more money than Godhave none of ithave no time forhave one's act together have one's back up have one's cake and eat it toohave one's ducks in a rowhave one's ears loweredhave one's ears pinned backhave one's fingers in many piesSimilar Idiomsback-to-back-to-backhave eyes in the back of one's headhave one's back uphave one's ears pinned backhave a face like the back end of a bushave someone's backhave one's mind about onehave one's wits about oneSimilar Phrasesback-to-backback awayback braceback breakerback burnerback porchback vowelback yerback circleback countryback doorback downback endceding backflanker backgo back onback entranceback exerciseback judgeback matter