It is a mode a man slips into when he has a nagging wife or girlfriend. He just says nothing while she whines and complains. It is his only defense mechanism against the non-stop jabbering and the only way for him to keep his sanity!
OMG dude, Larry's girlfriend just won't stop nagging him!! Look at him just sitting there lifeless, saying nothing.............he is in Uncle Joe Mode for sure!
Otherwise known as a "Sissy Boy" individuals known as "JoeMODE" usually have a below average schlong size, love indulging in "Sissy Hyponsis", and suck at the video games Rust.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.