Allahu-Akbar Share definition Flag Arabic for 'God is great' and is often use to signal Islamic terrorism. If you hear it JUST RUN RUN RUN RUN! Allahu-Akbar! Allahu-Akbar! Allahu-Akbar by YOURAVERAGEDICTIONARY May 21, 2018 0 0 Get merch Get the Allahu-Akbar mug. Buy Now — $32.95 See more merch