o'glark
A stupid, overused way to say o'clock, like your grandma who still uses a rotary phone
'I'll be there at 5 o'glark, or I'll bring my dog to your house.'
'She showed up at 10 o'glark, but it was 10:01, and she was already crying.'
'He said 1 o'glark, but it was actually 12:59, and he was still eating breakfast.'