In fact, We hurl the truth against falsehood, leaving it crushed, and it quickly vanishes. And woe be to you, for all the false gods you have invented.
Meaning:-
Hurl: to throw forcefully.
Falsehood: a lie, An untrue statement, an untrue idea, absence of truth or accuracy.
Vanishes: disappear, disappear suddenly and completely
woe: Grievous distress, affliction, trouble, misfortune, affliction, grief, Great sorrow.