A.k.a Shamonito, Shamo
Someone who is as dumb as if he was slapped in the face with a shovel. Sort of stinging sensation he gets in his brain when he tries todo math. Lacks any common sense or isn't aware of the most obvious of ideas.
Ex.1 - The Other Guy
(Bro): Hey yo...You know that Jay Kid...He's aight eh?
(Massi): Ahhw maan..He's a fuckin Shaymo.
(Bro): Ye-yeah
Ex. 2 - The Kitten
(Sis): AWWWWW, Jack is soooo CuTE!
(Massi): ...He's a little Shay-mo but..I mean...yeah, he's cute.
(Sis:) :) Cuchi Cuo
(Massi): ...Shaymo....(Pokes cat repeatedly)....Shayyyyyy-MO!