I hear it on a lot of future pop/future bass songs where there is a synth lead which has different timed flutters in and out, some really fast at the beginning then get slower in the moment
An example of a simpler flutter is on the synth in the chorus of : Blue, a song by Deep Chills, Trove on Spotify
An example of a simpler flutter is on the synth in the chorus of : Blue, a song by Deep Chills, Trove on Spotify