Growing up this was a standard bar combo known by suburbanites as a "shot and a beer" and native Chicagoans as a "boilermaker." The term "depth charge" for this drink was born out of World War II for reasons that should be obvious.
This drink can be drunk in two ways:
- Downing the shot and then quaffing the entire beer as a chaser (the "shot & a beer" but also known as a "boilermaker" because guzzling the beer makes one burp tremendously afterwards).
- Dropping the full shot - glass and all - into the beer before drinking it. The shot glass striking the bottom of the beer glass typically causes a great deal of carbonation to release, generating a huge head of foam... hence the names "boilermaker" and "depth charge."