A popular word used in hymnals and songs meaning, "Praise the Lord" which is usually referring to Jesus. Used by Christians, angels, and maybe some wackos who dont know what it means.
by www.eternalsoldiers.net January 26, 2004
A child prodigy, halleluiah's are generally smart and usually tall. They usually have your back, but if you offend them,they'll turn on you horribly.
HOLY SHIT! ITs HALLELUIAH!
by YeetMahBoi November 8, 2019