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.