To "doamikey" one must engage in spontaneous rage over something completely mondane that takes place in day-to-day life. To successfully pull it off one must build up slowly with short burst of childish screams finally reaching a climax of profanities and the occasional throw of a random object.
Geoff: That guy is struggling to open a tin of beans.
Harry: He looks like he is getting mad.
Angry Man: ARRGGHH
Geoff: He's gonna doamikey.
Harry: He gonna flip his lid.
Angry Man: *Slats beans across kitchen and hits bike*
Geoff: OH NO HE'S HIT HIS FAVOURITE RACING BIKE.
Angry Man: TWAT FUCKING SHIT.
The Dominey Effect is when a person has an internal hemorrhoid or several inside the rectum creating two or more distinctive strings of loaf when said person is on the can. The Dominey Effect is usually seen in public restrooms or restrooms in the workplace. It is usually the product of those who sit for longer than average periods of time i.e. office workers, video game addicts, lazy people, etc.
An office worker enters the restroom at the end of lunch break, and is ready to take a huge load off when he opens the stall door and sees that the previous user left a surprise in the bowl, and gagged when he saw the linguini shaped product of the Dominey Effect.