use in the same vain as Clever Dick, or Smart Arse, to be used after a person has made a statment, or knows everything, Generally used by posh people who are trying to be "hip" and on the "download" with the "kids"
your ego is so high that the people around you feel that you are trying to pull a Bannon - I E suck your own cock if possible while at the same time of boasting of your own accomplishment..."that person is so ego-testical"
This guy at the Office he keeps being ego-testical by trying to tell us of how he is the best at everything. If possible he would pull a bannon every second of every day and whip it out in front of everyoe to see. What a shameless bastard.