mesandose is incorrectly written, and should be written as "mesándo" is still its meaning:
Mesar simple gerund of the verb with pronouns, of 3rd person, enclitic, since this word is commonly pronominal and has as a direct complement to the hair or beards. Mesar beards and hair tends to be signal of despair, pain and discomfort for some negative fact as a death or a misfortune. Formerly, there was the trade of mourners, which staged the pain and grief to others by a death, crying, groaning with cries of despair and pulling of the hair with your hands at times to pull them.
