What is Church Wine?
1.
When someone asks for a sip of your drink, be it alcoholic or non-alcoholic, telling them to church wine it is saying just touch the liquid to your lips and that's all you're getting. This comes from the eucharist part of a Catholic mass in which wine is presented to be gently sipped, not drank.
"Can I have a sip of your beer man?"
"Ugh, alright, but church wine that shit because I don't have much left."
See