Top definition
FABUNKNOWN:- Is a secret FABARM who never appears to exist, he she or it could be operating, silently unknown, from the enemie's attic - the FABUNKNOWN nearly always operates silently - then disappears INSTANTLY!
I'm certain that he's a very cunning agent, we'll need to get a FABUNKNOWN up in his attic for a while, he or she'll get the facts within a couple of hours - FABUNKNOWNS ARE F A S T !
by FABARM December 17, 2018
Get the mug
Get a FABUNKNOWN mug for your cousin Jovana.