Place the mango chunks and ice cubes into a blender.
Blend on high speed until the mixture becomes smooth and frosty, with no large chunks remaining. You might hear the ice crunching and see the color intensify to a bright yellow.
Check the texture; it should be thick and icy, with a glossy appearance.
Pour the slushie into glasses, allowing the vibrant yellow mixture to cascade over the rims.
Optional: garnish with a small slice of mango or a sprig of mint for extra color and aroma.
Serve immediately and enjoy the cool, tropical refreshment with its icy crunch and juicy mango flavor.