Scammy means anything that is and/or related to a scam. It can be an
Internet site or any other written material or media that promises something for free yet later lies about it and 'requires' items such as money, ID, or personal information.
And even if you did give out those items,
like money or ID or clicking on
ads signing up for items because it says you 'must complete
one online purchase' before you can start your download.
In the end, you still are not given what you were promised. That site or service is then scammy.
Jack: "
Dude, I just found this awesome site where I can download movies. for free."
Jill: "I know the
one you are talking about, but it's scammy. They ask for your credit card to 'verify you are an
adult' when you try a download."