http://www.mspaintadventures.com/?s=6&p=002153
If you click on the Ghostbusters poster in John’s room, he mentions that Dave referred to its sequel as ‘nasty manbro bukkake theater.’
==> Submitted by zweibaby
Squarewave and Sawtooth appear on a poster in Dave’s room, long before they were ever introduced as Dirk’s rap-off trainers in the comic.