having someone's back

Ready to defend

Having someone's back means supporting or protecting them, especially when they face difficulty or opposition.

The image is of guarding the vulnerable area a person can't see—standing ready to defend against threats they might not anticipate.

Don't worry about the meeting tomorrow; I've got your back.

The phrase implies loyalty and reliable alliance.

Related

watch your six · shielding · reassurance · reliability · commitment · listening · rescuing · wingman · looking out for · advocacy · support system · trustworthiness · empathy · intervening · faithfulness · ride-or-die · through thick and thin · no questions asked

Opposites
loyalty and support

having someone's backbackstabbing

Covert betrayal of trust

double-crossing · two-timing · treachery · selling out

physical/situational protection

having someone's backlooking the other way

Deliberately ignoring wrongdoing

standing idly by · walking away

reliability in crisis

having someone's backrunning away

Rapid departure from danger

cutting and running · looking the other way

Family

having, someone, backed, backing, backer, backside, backward

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Positive · Everyday, not technical · Rated G