In simple words, a pseudo-intellectual cow! A person who's overtly conscious of what society thinks of him/her. To mask this conscious, the person often resorts to proclaim that their level of thought is higher than the opposite person hence they are disliked. Very unsure of their own decisions, rujutas often rely on other people for input but eventually do something totally stupid and dig themselves into a hole! Rujutas also claim to be very popular but that statement is like the existence of the unicorn; i.e. it is a myth!
My god, she's totally a Rujuta!