Verb
Absolutely not; I forbid it or it is impossible.
You think you're getting into university with these grades? Well, forget it!
You said we could go to the mall! —Forget it! Look at the state of this room! You're going to stay here and clean up before you go anywhere.
It doesn't matter.
What were you saying? – Oh, it was nothing important, forget it.
A conventional reply to an expression of gratitude.
Thank you so much! How can I repay you for your kindness? – Forget it; it was nothing.
I don't want to continue with this conversation (usually used in frustration or anger).
It's raining. I said, "It's raining." Do you hear me? It's raining! Oh, forget it!
Don't let it bother you; put it out of your mind.
Source: en.wiktionary.orgNothing fixes a thing so intensely in the memory as the wish to forget it. Michel de Montaigne
I'm a Christian first, and a mean-spirited, bigoted conservative second, and don't you ever forget it. Ann Coulter
We forget our guilt when we have confessed it to another, but the other does not usually forget it. Friedrich Nietzsche
Live and learn, die and forget it all. Native American Proverb
The point of the thorn is small, but hw who has felt it does not forget it. Italian Proverb
If I tell you my dream, you might forget it. If I act on my dream, perhaps you will remember it, but if I involve you, it becomes your dream too. Tibetan Proverb