House chores and that kinda shitb
I'm tired of my husband asking me to do jack shit when I was pregnant
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."
the act of two males locking their arms as if they were dosi-doing but then reaching over to grab their penises and masturbate
bro1: dude i totally want to jack right now
bro2: yea bro so do I
bro 1: i have an idea we should go dos-e-jacking
bro2: yea good idea here give me you're arm
then they proceed...