Goku is the central hero of Dragon Ball, the long running manga and anime franchise known for its battles, transformations and dramatic voice acting. Sussy is a playful variant of sus, slang popularised by Among Us for someone acting suspicious. Meme editors combined the two ideas, placing the slang into short anime edits where the mismatch creates the joke. The clip spread through soundboards, short videos and gaming chats as a portable reaction, and it remains used because both references are instantly recognisable to anime and meme audiences online today.