Chock o' block

An airport that is completely filled and when the ATC can't be bothered to let your plane land.

ATC: It's chock o' block in 'yer nan up 'yer nan.

by BruhGamingNL January 30, 2021

cock block o'clock

That moment when someone or something prevents you getting laid.

We better hurry up and fuck! My roommate is due home soon and it will be cock block o'clock.

by Loke E. Coyote August 25, 2013

5 o'clock block

the prompt 4:54pm Friday evening arrival of a certain visitor with a critical (due today) case that has been sitting on that visitor’s desk for 5 months and 29 days – yet needs to be out today!

F: Damn, I can't make the party tonight! I just got 5 o'clock blocked by one of my bosses! I'll be pulling another all-nighter tonight!

G: 5 o'clock-blocked again!? That excuse is getting old.

by 5 o'clock-blockee September 16, 2011