He showed us around the house while 'talking nineteen to the dozen'. [=('US') 'talking a blue streak']
People entered the park 'by/in the dozens'. [=large groups of people entered the park]
We'll need a couple 'dozen' hot dogs for the party. [=we will need about 24 hot dogs]
(..) - I know nothing about being a rat. - You know everything about it! Anything I wanted was a phone call away. Free cars. Keys to a dozen hideouts all over the city. I'd bet grand over a weekend... ... then blow the winnings in a week or go to sharks to pay the bookies. Didn't matter. (..)1990 Goodfellas
(..) Almost all of them were named Peter or Paul. It was unbelievable. Meet Paulie Jr., my nephew. And this is Petey. There must have been two dozen Peters and Pauls there... This is Marie. ... all married to girls named Marie. She looks Italian. And they named (..)1990 Goodfellas