Top definition
The fluctuating dilation of the anus after a traumatic event, that makes it reflect the differing sizes of the British 50 pence and 20 pence coins (both coins are hexagonal).
Phone conversation.

Friend: "What's up man?"

Sufferer: "Dude, I've eaten nothing but white bread for three days and I've just had my first shit."

Friend: "Woah, nightmare!"

Sufferer: "Tell me about it, I've been curled up on the couch for the past hour and a half sucking my thumb while my ass is all '50p 20p'."
by Rydo December 20, 2010
Get a 50p 20p mug for your friend Sarah.
Sep 11 Word of the Day
when you're hungover as shit after a spending a night drunk as a skunk
I'm hungover as a duck let's go get some grub
by pokeythepony June 25, 2021
Get a hungover as a duck mug for your dad Trump.