What is suss meaning?

"Suss" is informal slang that means to figure out, understand, or solve a problem with some level of intuition or detective work. It can also refer to checking or investigating someone or something. For example, "I need to suss out what's going on with this project" or "I'm going to suss out the new guy in the office." It is commonly used in American and British English. Some variations of the word include "suss out" and "sussed."