This scratch sound emulates a vinyl beat being spun backwards slowly like a rewind.
Standard Beatbox Notation (SBN)
{ vd ^wb }
How it's done
- Say the word "hiiiiiip" inward with a slight whispery voice
- At the end of the word, close your lips to create a stopping 'b' sound
- Then do a "ziiip" sound outward, ending with a strong 'b' sound as well
- The third sound, as explained by Inibeater, is the "voop" sound
- Use these three sounds in preferred order. Throw in a lip roll here and there as well to add some depth!
Video tutorial
Inibeater from France has an excellent tutorial on how to do this sound. Be sure to turn on the English subtitles!
https://www.youtube.com/watch?v=9Je6EVX--EE