Flippin' 12 Switch Share definition Flag The phrase used to describe one who is overreacting, freaking out, trippin, mentally nuts'd, or just generally out of it. Sarah: OMG. I can't believe he ASKED THAT. Jae: EW I KNOW I WAS FLIPPIN' 12 SWITCH!! Flippin' 12 Switch by Johnny Lemonhead May 11, 2008 Get the Flippin' 12 Switch mug.