Green’s Dictionary of Slang

julip n.

[SE (mint) julep, ‘a mixture of brandy, whisky, or other spirit, with sugar and ice and some flavouring, usually mint’ (OED)]

(US prison) home-made alcohol, usu. fermented juice.

[US]Other Side of the Wall: Prisoner’s Dict. July 🌐 Julip: Prison-made alcohol, fermented juice.