O'hair rhymes with:
o'hare, ohair, ohare, hair, haire, hairr, hare, hehr, herr, herre, o'hare, ohair, ohare, whitehair
O'hair sounds like:
o'hara, o'hare, o'harra, oar, ohair, ohara, ohare, oharra, ohr, or, ora, ore, orea, orear, oreo, ori, oro, orr, orrery, ory, our, oyer