In addition to Hipocorístico of several female names (Marcela, Graciela, Chavela, Consuelo,), we can add that the meaning of ' beer ' is an Americanism only for blondes; See cello.
In the slang popular in Mexico, he is called " chela " to the beer. Example: " Ox, inviting me to a few beers ".
Chela: Affectionate treatment for female name Graciela.