"To hail a cab" means to signal or call for a taxi to pick you up.
Sentences with «to hail a cab»
Today, we effortlessly do everyday tasks such as shopping, ordering food, and hailing a cab through mobile devices. (elearningindustry.com)
The baby hailing a cab does it from the comfort of an infant carrier while holding a small doll. (daddylibrary.com)
I would have simply hailed another cab had she told me that she didn't take pets and that the operator hadn't mentioned it to her. (petsmagazine.com.sg)