'Idiot!' (including the exclamation mark) is a term used on men who:
a) suffer from ADD and have just committed an act resulting from this ADD
b) engage in acts of vanity/narcissism
c) purposefully pull off an idiotic act
d) failed at something, but in a humorous manner
e) just deserve to be called it
f) are forgetful
g) pull off a clumsy act
h) ask questions which have no real answer
i) engage in manly acts / change their psychological behaviour around other like minded 'idiots!'
j) make inappropriate comments
TD: I forgot my keys at home and there's no way I can get in now
B: I just missed my flight, I was too busy playing xbox at TD's and couldn't make it to the airport on time..
TD: Sorry I'm late. I was on my way but then saw my reflection on a window and had to stop for a few minutes.
TD (falling off his segway): Whooo!
Segway Instructor: Idiot!
(TD and FH are playing Street Fighter 4 on XBox)
FH: I can beat you with with my eyes closed and one hand tied behind my back
TD: I'm sorry but I didn't catch that, I was too busy being awesome.
TD: I wake up every morning and piss excellence