SUSS Meaning of SUSS in English [suss] vt [by shortening & alter. fr. suspect] (1966) 1 chiefly Brit: to inspect or investigate so as to gain more knowledge--usu. used with out 2. chiefly Brit: figure out--usu. used with out Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012