i'll be back
It’s like ‘I’ll be back in a flash,’ but with ‘flash’ changed to ‘flask.’ So now it means you’re either coming back soon or you’re getting drunk.
‘I’ll be back,’ he said, then he walked into a bar.
She said, ‘I’ll be back,’ and then she drank a whole bottle of whiskey.
He said, ‘I’ll be back,’ and then he passed out on a couch.