Full Form: Bar Umar Lanat Beshumar.
Meaning: Curses on Umar for all eternity.
BULB is often used as a hashtag in various
social media platforms, mainly twitter. It is used by the shi'ites to curse one of the closest companion of the Islamic
prophet Muhammad, Umar Ibn al-Khattab for his apparent wrongdoings to Fatima al-Zahra the daughter of
Prophet Muhammad. They also blame Umar for the death of Fatima.
These views however, are rejected by the Sunni scholars.