look up any word, like hipster:
 
1.
Expression of strong agreement.
Facebook status: Carla misses the sun :-( and noticed how pale everyone looks in England today.

Friend's reply: you tell me! I think i'm gonna get some tropical sunshine in Florianopolis next month.
by Mr. Andrews McCurdle January 12, 2010
 
2.
I could scarcely bear the thought of inhabiting the same universe as you.
Pottsy says:
what happened last weekend?
Ed says:
You tell me
by Lord Kimber February 27, 2007