The noise you let out when you score an orgasmic goal and you knee slide leaving 3 lines on the grass
Yo did you hear my siuuuuuu
Yeah dude I seen you left three lines
It is used to show happiness and delight, it is also portuguese for yes
1. Cristiano Ronaldo´s Iconic Celebration.
2. The act of paying respect to everyone´s almighty god (aka CR7)
Muchas gracias aficion, esto es para vosotros. SIUUUUUUUUUUUU!!
SIUUUUUUUUUUUUUUUUU!
SIUUUUUWI