Prison Slang UK: Common Terms and Phrases Used Behind Bars

Every environment has its own language — and prison is no different. Inmates across the UK have developed a slang vocabulary that’s rich, blunt, and often laced with dark humour. Whether it’s to confuse outsiders, pass messages quickly, or just express frustration, prison slang is a world of its own. If you're curious about what inmates really say behind the walls, here’s your guide to the most commonly used prison phrases in the UK.

Why Does Prison Slang Exist?

Slang in prison isn’t just about sounding tough. It’s a way of life. Language behind bars helps create identity, build bonds, and sometimes protect prisoners from officers or rival inmates. Certain words are used to keep things discreet, while others develop out of boredom, routine, or shared humour.

Interestingly, many slang words used in UK prisons filter into everyday conversation once inmates are released, particularly in urban communities or areas with strong prison influence.

Common UK Prison Slang Terms

Screw – A prison officer. Originally a derogatory term, now widely used.
Banged Up – Locked in your cell. “I’m banged up at the moment.”
Gov – Short for governor or officer. Used when addressing staff.
Bang-Up – The official lock-up time. "Bang-up starts at 8."
Pad – A cell. “Back to your pad.”
Nick – A slang term for prison. Also used to refer to solitary confinement ("the block").
Straight Goer – An inmate who keeps their head down and avoids trouble.
On Basic – A punishment regime with minimal privileges.
Guvnor – Respectful slang for the head of the prison or senior staff.
Burn – A cigarette. “Got a burn?”
Spin – A cell search. “My pad got spun this morning.”
Hooch – Homemade alcohol brewed secretly in prison. Learn how hooch is made.
Ghosting – Being transferred without notice. “He got ghosted to another nick.”
Hot Plate – A hot meal served at dinner or lunch.
Doing Bird – Serving a prison sentence. “I’m doing five years of bird.”
Green – Prison uniform or clothing. “He’s back in green.”
Wing – The section or block of a prison where inmates live.
Snitch – An inmate who informs officers about others. Also called a grass.
Legging It – Running away, escaping, or avoiding staff.
Bang To Rights – Caught red-handed or guilty without a doubt.

Slang Isn’t the Same Everywhere

It’s worth noting that slang can differ depending on the prison, region, or inmate group. Words used in London’s HMP Wandsworth might not carry the same meaning in a Scottish YOI (Young Offender Institution). However, many terms are now widespread thanks to prison TV shows, books, and the mixing of inmates across the system.

How Officers React to Slang

Prison staff are usually familiar with slang and may use it themselves when talking with inmates. In some cases, it’s actually helpful — providing insight into what’s happening on the wings. That said, certain phrases (especially those involving drugs, violence or escape plans) are taken seriously and monitored closely.

Slang as a Survival Tool

In an environment where trust is rare and reputation means everything, language becomes a survival tool. Knowing the right words can help avoid trouble, show respect, or simply blend in. For new inmates, picking up the lingo quickly can be the difference between standing out and keeping a low profile.

Final Thoughts

Prison slang in the UK is more than just a collection of quirky words. It’s a constantly evolving code that reflects the reality of life behind bars — from fear and frustration to boredom and camaraderie. Whether you’re just curious or trying to understand someone’s past, knowing the meaning behind the phrases can open the door to a world most people never see.

For more insights into life inside — including prison categories, visiting rules, and daily routines — visit our full library at PrisonGuide.co.uk.