歌うたいまくる

godan verb (-ru)

sing energetically; sing with abandon

Describes singing with great energy, enthusiasm, or without restraint, often for an extended period. The auxiliary verb まくる adds the sense of doing something vigorously or non-stop.

See also: まくる

• カラオケで一ひと晩ばん中じゅう歌うたいまくった。

  I sang my heart out all night at karaoke.

• 彼かの女じょはステージで人にん気き曲きょくを歌うたいまくった。

  She energetically sang popular songs on stage.