A step on from SOL (which obv. stands for SMILE OUT LOUD which OBV. was invented by Hotmas and Steffue and no other fools). To A (pronounced AHH) SOL is to actually smile out loud as opposed to simply claiming to smile like ApeoplewhoclaimtosmilebutAdon't.
In fact, A (still pronounced AHH) can go before anything said to mean you are AHH-ctually doing it.
Alex: . . .
Joe: Fine be that was and ostracize me, you ASOL!
Alex: Huh? I didn't Ostracize you. I just didn't hear you.
Alex: I am not a liar!
(2)Joe: So Sarah whats on ur schedule for tonight?
Sarah: I don't know
(Alex, who is sitting next to Joe, tapping his shoulder with her hand, slaps Joe in the face and doesn't notice)
Joe You just slapped me!
Alex: I'm sorry! I didn't notice.
Joe: You ASOL...