This is the 6615th most frequent Japanese word.
ドムドムハンバーガー
Dom Dom Hamburger: Japan's first fast-food hamburger chain.
In this sentence, 'ドムドムハンバーガー' is used as a proper noun to refer to the specific hamburger chain.
ドムドムハンバーガーは日本初のハンバーガーチェーンです。
Domdom Hamburger is Japan's first hamburger chain.
Here, 'ドムドムハンバーガー' is used as the name of the location providing these services or options.
ドムドムハンバーガーでは多彩なメニューが楽しめます。
At Domdom Hamburger, you can enjoy a wide variety of menu options.
In this case, 'ドムドムハンバーガー' refers to the physical restaurant location where the family outing happened.