What does be a hero be a hero mean?

be a hero be a hero meaning in Urban Dictionary

what people advise you not to ever do during averagely precarious and insignificant situations In the world of web gaming, often used sarcastically, e.g. whenever working enthusiastically into a risky circumstance in which failure is immanent. Often this could really help the player's team - for instance, if the enemy is distracted because of the hero - but it usually is done just for entertainment.