a tool with a heavy metal head mounted at right angles at the end of a handle, used for jobs such as breaking things and driving in nails

a metal ball of about 7 kg attached to a wire for throwing in an athletic contest

hit or beat (something) repeatedly with a hammer or similar object

he hammered the tack in

attack or criticize forcefully and relentlessly

he got hammered for an honest mistake

beat down the price of (a stock)

sceptical investors hammered the computer company's stock

declare (a person or company) a defaulter

Willis was hammered in the recession

a British film company (full name Hammer Film Productions) founded in 1948, known especially for its horror films