When someone gives you what-if scenarios that could hypothetically come true, giving false hope and then you finding out that they sold you words (a "dream"), that could never be achieved.
Josh was selling me dreams. He said he bought a house when I decided to move to "__" with him, but he still lives with his parents. What am I going to do?
A great song from Undertale.
It plays in the firsthalf of the Asriel Dreemurr fight.
Seriously, listen to it.
UT Fan (Undertale Fan): Hey have you heard of the song Hopes and Dreams?
Non-UT Fan: No, what is it like? Where's it from?
Ut Fan: It's a great song from Undertale, you should listen to it.