The act of making ones self laugh.
He was just sitting on the couch at the party, silly grin on his face and not saying a word. We all knew he was laughterbating.
1.The act of laughing at your own jokes.
2.To plessure yourself with something you say.
Stop laughterbating, your're not that funny.
Don't you know when you laugh at your own jokes all the time it makes you a cronic laughterbater.