Wiktionary
you think
phr. (context idiomatic English) (non-gloss definition: A sarcastic, rhetorical response to an obvious statement.)
Wikipedia
You Think
"You Think" is a song performed by South Korean girl group Girls' Generation. It was released on August 19, 2015 as the third single from the group's fifth studio album Lion Heart by S.M. Entertainment.
Usage examples of "you think".
Can't you think of some way to stop him without detonating the mined area?
OK, said the calm voice from somewhere under all the reasoning and unreasoning fear inside her, what did you really see, and what do you think it means?
I was about to say as much when I remembered what Caitlin told me about obtaining the food sample: It won't be as easy as you think.