Answer: acab

AnswerCrossword Clue
ACAB

Hail ...

ACAB

Hail .. (call "Taxi!")

ACAB

Hail ..

ACAB
Call ..
ACAB
Words after call or hail
ACABFlag down ..
ACAB"Okay, you're ..." (taxi joke punch line)
ACABHail .. (flag down a taxi)
ACABIt might be hailed
ACABHail ....
ACABHail ... (cry "Taxi!")
ACABHail -- (cry 'Taxi!')
ACABHail ... (wave from the sidewalk)
ACABSomething to hail or call
ACAB"Call me ..." (old joke setup)