Related Clues:

• Straphanger's buy, once
• Ride, maybe
• Turnstile coin
• Big Bullock flick
• Subway turnstile feeder
• Ring, as a bell
• Bus fare, sometimes
• Highway fee
• Sound repeatedly
• Subway fare, perhaps
• It kills, it's said
• Sound from the belfry
• MetroCard payment
• Taxi cost
• Go 50 in a 30-m.p.h. zone, e.g.