jacktaculous
When you're so dumb you can't think of anything else to say but something stupid and over the top. It's like jacktastic but with more screaming and less brainpower.
This cake is jacktaculous. I ate it with a fork and a chainsaw.
My dog just won the lottery. That's jacktaculous.
I got a 100 on my math test. That's jacktaculous. Also, I cursed my teacher.