gains o' clock - The time when you're supposed to be working out, no matter i

The time when you're supposed to be working out, no matter if it's morning, afternoon, or late enough to make your brain question its life choices.

'Gains o' clock, bro. You're not getting outta this bed.'

'It's gains o' clock, and I'm still wearing pajamas.'

'Why is gains o' clock on a Tuesday? That's not fair.'