(Not exactly NSFW, but my Mom would not approve) 5. bobo The fabrication of untruths and the articulation of them as gospel to one's peers. Someone who 'honks' a bobo will exaggerate every aspect of a story to ludicrous proportions, making it so improbable as to lose all possible credibility. "My grandad invented the space shuttle." "No way. You're honking a bobo."