The state of having so many substances going though your body that you say insane things, humiliate yourself in public, and risk being arrested all in the name of a good time, reminiscent of the actor Charlie Sheen.
We went to 6 different clubs last night in NYC... Drinks, shots, dancing, more shots, more drinks... It was off the hook and way beyond out of control... I have never been so messed up in my entire life, we were totally sheenfaced.
When you merge your planned and anticipated outcome to propose/assume a super-end result.
If used in the negative it means your planned and anticipated outcome was nothing like you expected.
Sean: I knew we shouldn't have robbed the bank! That stupid trick lied to us!
Leroy: Sho ya right but yo a*s got away... I knew lock up would be rough... But what I didn't planticipate on was mofo's always asking me for 80 dollars.