if someone is doing jack, they are doing nothing. they are lazy and can't be bothered to do anything. it also means if someone can't be bothered, or they dont want to put effort into something.
person a: "where's tony, he needs to do his homework!"
person b: "idk, hes probably doing jack on the couch."
another way of saying aesthetic (not to be confused with the aztec empire)
person 1: "omg did u see daniel's new shades?"
person 2: "yesss they're so aztec."
person 1: "stop, i really wanna redecorate my room."
person 2: "ikr, im so happy i did mine last year. it's all aztec and pastel."
daniel ricciardo supremacy or, if ur feeling annoying, drag reduction system. used in f1 on long straights, where rear wing opens, to (obviously) reduce drag and make car go vroom vroom faster
crofty: here's vertsappen on hamilton with drs!!
*max overtakes with literally zero effort what a king*