Yap.Town

って言うんだよ

is called; goes by the name

→ って
phrase Rare #30,588
is called; goes by the name Used casually to tell someone what a person or place is named.
JA: この子はポニョって言うんだよ。
EN: This child is called Ponyo.

星の湖って言うんだよ

It's called Star Lake.

— ハウルの動く城 (2004)

この子はポニョって言うんだよ

This one's name is Ponyo.

— 崖の上のポニョ (2008)