arse with a nose on it

The face of someone who is considered to be very ugly.

Bloody hell, have you seen him? His face looks like my arse with a nose on it.

arse like a rabbit's nose

A way of describing your anus when you've had too much vindaloo and beer the night before

Sorry dude couldn't make it for lunch, got an Indian takeaway and a six pack of Guinness last night and I've had an arse like a rabbit's nose since this morning, it hasn't stopped twitching