What does allah'u ackbar mean?

allah'u ackbar meaning in Urban Dictionary

Ah-Lah-oo Eckh-barArabic for "God is very good". A typical expression and often utilized as a prayer during times of relievement or desperation in Muslim communities. Additionally, it is a standard war cry of Islamic Fundamentalists in which it became imfamous to Westerners and involving terrorism. Saying it in the us or Canada is regarded as taboo despite its definition.