"silly duffer brother" or "SDB" for short can be used as a noun or adjective to describe an extremely idiotic person (also a nitwit or fool) or an extremely idiotic action.
SDB combines Aussie slang (duffer) and incorporates a reference to the world renowned Duffer Brothers (American twin brothers who write and direct science fiction films, horror films and television shows - including Stranger Things).
Girlfriend: "I can't find my phone again!"
Boyfriend: "It's in your hand you silly duffer brother (SDB)!"
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
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.