n. To round up all your friends some time after midnight and drive down to the nearest 24 hour McDonalds for burgers, cones, apple pies or whatever else the night's cravings bring.
Ancient Australian Proverb - A Macca's run is a sacred late night ritual performed by all p-plate license holding kids in Australia. It's a trip to the local Maccas at a late hour with you, the deso driver, and one faithful mate to carry all the orders that only half your fucking useless friends have paid for and if you're the only fucker sober at the party it's your arse asking for 40 fucking oreo McFlurry's at 2 AM.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.