This is extremely easy, just listen to how the bass goes in the beinning for the right rhythm.
[ Tab from: https://www.guitartabs.cc/tabs/b/bikini_kill/outta_me_btab.html ]
G | ------------------------------------|
D | ------------------------------------|
A | ---------------------------3-33-----|
E | --3-33--2-22--0-00------------------|
that's it, its just over and over again, it speeds up a little bit when Kathleen repeats
over and over again but aside from that it stays exactly how it does in the intro
