To over-power yourself or inflate your own ego as to act crazy or ignorant. Usually the "Scarfacer" either fights someone, engages in doing too much of one drug, or acts a fool in front of the wrong person.
I was scarfacing in front of this chick and got slapped.
Dressing to the nines and then drinking copious amounts of finechampagne as well as blowing numerous lines of cocaine in one night, usually one sitting
John: Hey man, what did you end up doing last night?
Kyle: It got pretty crazy man, you missed out on a crazy night of SCARFACING!
Normally the man turns to the other man and says "scar me dad" and cuts his anus many times until the other man ejaculates and then let's himself bleed out on the floor whilst the other man fucks his dead body spread out on the floor hence the name starfish.
I'm going to jail because i finally gave my man chocolate scarfish last night....totally worth it.