Best fan chant:
We don't care if we win, lose, or draw,
Darn the hair, do we care,
Because we only know that there's going to be a show,
And the Glasgow Celtic will be there,
And the Glasgow Celtic will be there.
Local food & drink:
Glasgow has a pub called “Lebowskis”, themed after everyone’s favorite Dude. More importantly, Lebowskis mixes 25 (!!!) different types of White Russians. Not a joke. There's an entire menu of "wonderful Caucasians". Also, you should try the steak pie.
While you're there:
If that rug really didn't tie the room together, make the ultimate Ron Swanson pilgrimage to Lagavulin's Scotch distillery on the Island of Islay. The booze factory is on other side of Scotland from Celtic Park, but you've seen pictures of the Scottish countryside; it's worth the trip.