Claiming money is the key, so keep on dreamin
And put them lottery tickets just to tease us

from Kanye West (Ft. Adam Levine) – Heard 'Em Say Lyrics on Rap Genius

Meaning

People waste their money on the lottery. They “tease us” by advertising the lottery as a way out when theres such low odds.

The “us” in this line is interesting. Kanye is a superstar rapper but relates well to his audience

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