It's worth noting that the name "weiner dog" is considered informal and sometimes derogatory by Dachshund owners. While it's a common nickname, it's best to use the formal name "Dachshund" when referring to the breed, especially in a formal setting.
Why is dachshunds called weiner dogs?
The nickname "weiner dog" for Dachshunds comes from their long, low body shape. It resembles a long, thin sausage, which is what "weiner" refers to in German (the origin of the breed).