not a chance
(There is) no possibility (that that will happen). You? Beat me? At ping pong? Not a chance! You actually think Gina will go with you to the dance? Not a chance, pal.
Not a chance!
Inf. There is no chance at all that something will happen. (A variation of (There is) no chance.) Sally: Do you think our team will win today? Mary: Not a chance! Jane: Can I have this delivered by Saturday? Clerk: Not a chance!