1. (verb) When a
girl practices her oral techniques on a guy (usually slightly older than her) who she only knows kind of well, so that she can improve her skills in a way where there is
low emotional risk.
2. (noun) The male who receives the
said act of oral pleasure and helps to guide the female in her knowledge of the thing. A good buda is trustworthy, because he knows that telling anyone of his role would be a breach of the female's trust (and that would
mean he wouldn't be requested to engage in this act in the future).
The choice of the word 'buda' is
said to be a reference to the male in the act acting like a wise Buddha, imparting his wisdom and knowledge to the female.