Idiot

Those who do not know even the word knowledge for they lack common, uncommon and even basic sense. They are the people you deal with everyday at school and even in the workplace. So if you see them show them this and give them a slap.

EX. Jaden looked at his text knowing none of the answers thus he realized he was an idiot
EX. Jeff slept with his girlfriend's sister and blabbed about it on Facebook realizing on such a public page his girlfriend found out what an idiot