Wineo'clock 

anytime during the day when a wine is most definitely in order.

" Mmmm, I think its wineo'clock!"

Wineo'clock by Idgy July 28, 2009

wine O'clock 

a time for wine, often around early evening (5pm-ish). It is similar to "Beer O'Clock" in that it can be anytime a wine appreciator (read: "wino") feels that some good vino might just hit the spot

Man, today was a long day—it's definitely wine o'clock now.

wine O'clock by CadeRageous! May 6, 2007