n, f. This word is derived from the russian word "her" (penis, dick) and means almost anything that you don't understand or which meaning and purpose you don't know exactly.
You see computer for the first time. Don't feel so ashamed, just ask:
- How does this herovina work?!!
Your plans is spoiled, you are in very low spirits, you're looking in a mirror and exclaim:
- What a herovina is going on!!