song parody; new lyrics to an existing melody
Refers to taking a well-known song and replacing the lyrics with humorous or different words while keeping the original tune.
He made a parody of a famous song and made his friends laugh.
On this show, we introduce song parodies sent in by viewers.
Standard kanji spelling; common in news and everyday use.
Simplified variant; less common but still seen.
Compound of 替え (change, substitute) and 歌 (song). The exact historical origin is uncertain, but the word naturally describes the act of changing lyrics while keeping the melody.