Nah, it's just a joke. Nothing in there to promote bitcoin. Actually it just seem to acknowledge the belief that bitcoins are mostly used for criminal activity online.
Maybe because it is getting popular since it hit $3000 price that time, bullying and bitcoin don't have any connections so I think it s like that. The line "give me your lunch money online" is funny, you add up the bitcoin accepting thing because it is online, makes it hilarious.
I saw Peter mention bitcoin on a episode of Family Guy another time, he looked at the screen and said 'Bitcoin!!'. That was it. No explanation or joke after that about bitcoin.
There was a bump on AS that had all the writers favorite altcoins and I think Dogecoin was the top of the list.