A guy walks up to a street vendor and asks, “What’s on the menu?”
The vedor responds, “We have grilled eel on a stick, and we also have beef offal.”
The guy, trying to be clever, asks, “so, got any grapes?”
“Come on bro”, the vendor responds unimpressed. “Beef or eel.”
“Beef or eel” = “Be for real”, or “Quit messing around”
Oh I see.
Thanks