The phrase "outrageous amount" means a very large or excessive quantity or number, usually considered to be unreasonable or unexpected. Full definition
Instead of spending outrageous amounts of money on new clothes, she decides to purchase her clothes at a lower price using a medium - end department store. (thecollegeinvestor.com)
Sure, you may have to pay outrageous amounts of interest, but the consistent payments showing on a large account will have a drastic positive impact on your score. (badcredit.org)
You know how some credit card companies charge outrageous amounts of interest? (literary-agents.com)