Inugami Korone Screams During Oozora Subaru's Recommended Death Burger Stream

Seems like a mix of various elements

Shiraka Meme Material
【GB】fubuki fox memes Summary + Usage Examples【 #shirakameme 】
https://www.youtube.com/watch?v=YIHd1pctXvM

Source of the gag
This is... a Death Burger!?
https://www.youtube.com/watch?v=OHuZDnYy-AE