A boilermaker is the drink consisting of a glass of beer mixed with a shot of whiskey. This straightforward whiskey and beer concoction, wherein the whiskey is dropped into the beer, found favor in the 1800s among factory workers—possibly those who fabricated the boilers of locomotive engines, hence the name.
Pour the whiskey into a shot glass.
Fill a pint glass halfway with beer.
Drop the shot glass into the beer.