Jackasstastic
like something a dumbass came up with while eating a whole bag of chips and staring at a ceiling fan
His plan to win the spelling bee was jackasstastic. He spelled 'magnificent' as 'manginificent.'
The jackasstastic idea of putting glitter in the principal’s coffee was genius in his mind.
The jackasstastic way he tried to ride a bicycle backwards while wearing socks on his hands was pure madness.