Portsmouth Land Flat Jam

Yeah, so some of you may have seen the unusual flyer in Pijin recently promoting the Land Flat Jam in Southsea/Portsmouth this Sunday. Like me, at first, the word flat encourages your mind that it's a flat land or some weird long jump/jump to flat contest, but i'm pretty sure it'll be a proper good street jam, just like Southampton's own... So yeah, as the poster says, 12noon at the law court walls. If you don't know where the law court walls are, you are an idiot (they're near the train station...). See you there?