A point in time at which a friend wants to go home and it is clearly before everyone else he or she is with is ready to end the fun. This term can be applied at any time of day.
It's 11:30PM on Saturday and everyone is out at a party.
Frank: "I'm kinda tired. I have to go home and study."
Adam: WHAT?!?! I didn't know it was BABY O'CLOCK!
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.