Allotment 

Mostly made up of old people that smell like cabbage and think they are more important than politicians.

I'm just going down the Allotment so I can piss the locals off and moan about the younger generation.

Allotment by Monty 2 August 11, 2022

Terry Waite's allotment

Self-explanatory to Britishers in the 1990's, this description of unruly hair will puzzle the rest of us, so:
1. Terry Waite served as the Anglican Church's international diplomacy negotiator. In 1987, he was himself taken hostage in Lebanon and held mostly in solitary confinement until his release in 1991. He's a well-known public speaker now.
2. "Allotment" in Britain is an urban rented garden patch.
Hence, Terry Waite's allotment would be untended and weed-choked.
I haven't determined if Waite actually was an allotment holder at the time of his confinement.

The man on the bench had a red beard like Terry Waite's allotment.

Terry Waite's allotment by Jesfine January 1, 2005

Terry Waite's allotment

(Simile.) Describes a badly overgrown ladygarden or punani in need of a lot of TLC. (And possibly an industrial-sized strimmer.)

"I pulled down her knickers, and she had a twat like Terry Waite's allotment! I've seen long-haired poodles with less hair than her!"

Terry Waite's allotment by Niall Brady February 9, 2003

Terry Waite's allotment

see ambush

I got totally ambushed, she was groomed like Terry Waite's allotment.

Terry Waite's allotment by Barnold April 1, 2004

Dig my allotment 

Get aggressively railed

Hmm I’d let him dig my allotment - I want him to rail me

Dig my allotment by Terrnace47 February 18, 2021

Spiritual Allotment

A prosaic name for the toilet.
Men who don't have access to a private outdoor space will often repair to the WC for a bit of peace and quiet.

Woman: You were in the toilet a long time. Are you constipated again?
Man: No I just needed to spend some time on my spiritual allotment.
Woman (mutters under breath): That's why it smells like manure in there then.

Spiritual Allotment by Green Tito May 6, 2013

Allocentric

Its how a British guy would say hello to another guy named centric.

Allocentric example.
British Guy: Allo Centric
Centric: Allo Allo, hows it goin chap?

Allocentric by aberedecop December 16, 2008