it's a humorous expression commonly used on the
internet that combines 2 other already well know terms with similar humorous intentions, such as ''Baka'' from the Japanese
anime culture which means silly/idiot, and ''sus'' which was an abbreviation of ''suspicious'' which originated from a recently popular
game called ''among-us''. combined they intend to remark the untrustworthiness of an individual within a level of intimacy toward the individual who is being referred as such.
however, due to the rapid popularization of the term and the unexpected overuse of it among several communities, many times without
even contextualization; the term has been a subject of discomfort for several
people because of its reference towards such subjects.
person1:
hey don't worry, trust me! I will keep those snacks you guys brought, safe with me until the last of the week
person 2 no way! we all know you're a
Sussy Baka