Where does Arin whisper to himself then yell "SUCKS"?

After The Super Mario Maker episode 71 that aired today, Arin vaguely exclaimed "Sucks". This reminded me of how hard I laughed last time Arin made a similar exclamation. I only remember the way he said it and I cannot remember any of the context. I feel like it was relatively recent though. Does anyone remember/know where this is?