G o'clock
A time when you're too lazy to check the clock but still know it's bad
"I don't care if it's 8 o'clock. I'm not getting up."
She texted me at 4 o'clock and I just replied with a photo of my face on the floor.
He said he'd be there by 7 o'clock, but he showed up at 9 o'clock with a hangover.