Yeah. I guess Suzu said something in japanese like "ma maa". That can be translated to something like "Come on" or "Let's calm a little". Of course, that sound like "mama", so you can imagine the rest.
@JuliusCV
the raws say Maa maa so I think your theory is correct,
there's an active translation thread usually every wednesday morning from maybe around 03:00 gmt on 4chan's /a/ board for anyone curious where these keep coming from.
I'm frequently curious just how badly we'd hurt the ecosystem if we annihilated every last mosquito on the planet. They can't be that important to the food chain, right? I'm sure their predators will adapt.