From Longman Dictionary of Contemporary Englishcomb something ↔ out phrasal verbDCBDHPto use a comb to make untidy hair look smooth and tidy She sat combing out her hair in front of the kitchen mirror. → comb→ See Verb table
Examples from the Corpus
comb out• A gorgeous Eurasian man combs me out.• Let him see the hand go through the hair, as if combing the wetness out.• It lay as if some giant hand had combed it out and then blow-dried it, in a perfect circle. 