question again

.
Ross: Today's the day Carol and I first.. consummated our physical relationship. (Joey is puzzled.) Sex. ..You know what, I-I'd better pass on the game. I think I'm just gonna go home and think about my ex-wife and her lesbian lover.
Joey: The hell with hockey, let's all do that!
Chandler: (trying to stop Ross leaving) C'mon, Ross! You, me, Joey, ice, guys' night out, c'mon, whaddya say, big guy, (Pretending to punch him in the stomach.) Huh? Huh? Huh?
Ross: What are you doing?
Chandler: (stops) I have no idea.
Joey: C'mon, Ross!
Ross: Alright, alright, maybe it'll take my mind off it. Do you promise to
buy me a big thumb finger?
What does the words in brown mean? Is it some kind of food?
thanks

:D