A term used in the PC game "League of Legends", used to refer (in a derogatory manner) to a player who's been stuck in diamond elo for a really long time, who isn't good enough to make it to masters+, but still has a massive ego as if he's a good player. Diamond dogs are often hardstuck in the lower divisions too, like d4-d3.
This jungler in my last game was so fucking bad, but wasn't able to see/acknowledge how hard he got outclassed and blamed laners. Looked up his op.gg, he's been a diamond dog since s4...
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.