The walaychu (hispanicized spelling hualaycho, also walaycho) is a small lute-like fretted stringed instrument, the smallest member of the charango family. It is the same or similar to the maulincho. The walaychu along with the charango and its variations are believed to have been born around Cerro Rico of Potosà located in Bolivia.
The word (walaychu )is ( quechua ) vt. meaning :a man lazy ,someone always lays on the ground everywhere,in addition this an evil man. It's colloquial word in Bolivia; a smaller or similar to charango
References
Walaychu Wikipedia(Text) CC BY-SA