What is this scene parodying? In chapter 8 of +Tic Neesan, what is this scene parodying?

I don't get the references at all. :(

The only thing I could possibly link would be Welcome to the NHK's anime mascot who has a similar catchphrase, but I doubt very much that it's the link.
Thanks to @Krazer.

The characters in the scene seem to be Ikkyuu and Shin'emon from Ikkyū-san. 

The low-effort scribbles are signifying that they are characters from another series and want to avoid copyright issues, like how many MacDonalds in anime are called WacDonalds or similar.

I think it's not parodying a particular scene but instead just making fun of Shin'emon's cleft chin: