Spooj is the crusty stuff left on your spoon (or anything else for that matter) after you get it out of the dishwasher. Or it can just mean some revolting substance ypu would never want to contact without a full radiation-proof encounter suit. Sometimes confused with spooge. Example: Can you believe the spooj Erik left on the table? Tell him to clean it up.
SPOOJ
Meaning of SPOOJ in English
Slang English vocab. Английский сленговый словарь. 2012