Spend, spend, spend.
Check it out:

Obamacare is more than just a new entitlement. Charles Blahous of economic policy think tank Economics 21 writes about just how large of an impact that its provisions will have on the economy in the future. Spending on Obamacare’s coverage expansion is immediately a massive entitlement expansion, and will only get worse.

Blahaus contrasts Obamacare with our other major entitlement programs and finds that ACA spends more than all but Medicare, and does so much faster: