For your feminist boot camp reference files: Sleater-Kinney's Corin Tucker and Carrie Brownstein took to PBS NewsHour to helpfully explain riot grrrl in 20-seconds -- the optimal time length for looping the video and playing it continuously, forever.
Tucker uses her words to patiently explain the 90s DIY, feminist movement that Sleater-Kinney originally helped to define, while Carrie Brownstein goes with a more demonstrative method: primal screaming and punching. Watch the clip, above.