Wild Creature Scans

[MangaDex]

 

[ramiscal-jocas15]

https://storia.takeshobo.co.jp/manga/himitsunoaishikata/

 

[blazjon]

please don't use terms such as "suss out" in your "translations" next time please.

 

[Nosoyunpenguino]

please don't use terms such as "suss out" in your "translations" next time please.

I don't know if you're concerned about this being new slang, but this phrase has existed since the 60's.