Looks like a juice in a bottle. Oh fuck, there's alcohol in them, well, lots of it, and it's called whiskey! We could call it fuckjuice. Everybody at the bar table are getting fuckjuice poured into the same type of glass used for drinking apple juice.
An explicit generalised name for something (be it person, place, object or otherwise) you can't remember the actual name of at the moment in time, during a conversation.
(Object)
Dave, pass me the uh... uhm... Fuckslice.
(Place)
Yeah, we took a long trip to... Fuckslice? - off of the main road...
(Person)
Oh I remember him, his name was... John... Fuckslice.