You must know by now that Bernie Sanders owned the Biden inauguration "normcore" and we were all s-mitten! (see what I did here?). And his meme already has been inserted in all possible situations. So by their own admittance Sandwich W Noss decided to "ride the wave" and get him to get a Sandwich there in situ. The line also tries to riff on his name "Yo2Bernie el Berden" the word "yo2borne" (litterally "may he burry me" is slang for "how cute")... And yes, they inserted his name in it (to be honest not sure I am a total fan of it though). Still, feel the Bern people!!