(Written with help from Spoony)
Bam!
Batman is knocked to the floor and is sent halfway across the room. These goons hit harder than he thought. However, he is only down for a moment. He gets up and starts furiously punching the thug, eventually knocking him down. Another of the thugs comes up and grabs at Batman, but he counters the move and starts to twist the thug's hand.
While he is distracted, the first thug gets back up. He runs up and grabs Batman from behind, putting him in a reverse bear-hug. The thug takes him and slams him to the floor. Then, a third goon starts trampling barefoot on Batman's face and chest, knocking the air out of him. He finishes by dropping his ass down on Batman's head. The thug thinks it's over and starts to pick him up.
Unfortunately for the thug, Batman gets his head straight and is back on the offensive. After several blows to the head he finishes the thug with a kick to the dome. The other two thugs realize Batman's getting his momentum back, so they both attack him from behind. One of the goons starts balancing on Batman's chest barefoot, crushing the breath out of him again. As he is being trampled by one thug, the other decides to finish Batman off by doing what the first thug did. So, he sat down on Batman's face, slowly swallowing it into his massive ass.
Batman soon passes out to the combined weight of the two massive goons. The third thug is helped up by the second, and they stand by the thug still on the Bat. The thug sitting on Batman stands up, and Batman's head is still wedged in his ass. The three thugs burst out laughing, finding Batman's pathetic state hilarious. After a few minutes laughing and celebrating, the thugs decide to rest and call some of the other guys.
The thugs take Batman and lay him on a plus size couch, something common to Gotham's fat citizens. Then, the three 500+ pound thugs all take a seat on top of him. There is absolutely no space left on the couch. If anyone were to walk in, they wouldn't even know Batman was under them. One of the thugs gets on his phone, and calls up some of their crew. He tells them what has happened and to get over there and enjoy the Batman with them.
The three goons soon start to release gas on Batman, which leads to a farting contest. Unknown to them however, the gas and constant movement is waking Batman up again. After awhile they hear honking outside, so they get up to let the others in. They figure Batman will stay out, so they leave him alone on the couch. Batman had gotten enough strength back to get up, but he wasn't sure if he was able to get away yet.