Expressing oneself too directly, too plainly, insensitively.
I once considered buying a birthday card for my dad that made fun of his age. My dad was in his late 60's. It portrayed a man in a car looking in a rear-view mirror with a panicked expression, and seeing the Grim Reaper. The message printed on the mirror was, "Objects shown in mirror may be closer than they appear." I thought it was hilarious, but I thought it was "hitting the nail too squarely on the head." It's implication was too direct.
Adj. some one who isnt the brightest crayon in the coloring box and is very short. At times they can have a little temper.
they are a square, loser, and a dork at the same time! Oh and they are funsize for sure! and can make you smile anytime. they are one of a kind.