its where you spend an extremely long period of time in a 24/7 McDonald restaurant just to use there free WiFi and charging ports whilst talking to actual different and random customers who went in to actually eat and then leave. usually done at night time
when you present your guilty pleasures publicly in front of friends, family, or a group of people
"hey guys i came back from work early"
"why do you have a hentai profile picture"
"...uh..."
"my dude did you just pull a mcdonalds on main? haha"
"...if that's what you want to call it, yes"