Free as in Facebook
Yesterday we were in an airport. We tried to connect to the airport "free" wifi. It had a captive portal that asked for a lot of personal information before one could maybe get on the internet, and we gave up. Bologna Airport, no matter what they do to pretend that they like you, it's always clear that they don't.
I looked at the captive portal screen and I said: «ah yes, "free" wifi. Free as in Facebook».
We figured that we had an expression that will want to be reused.