Slang Dictionary — Modern Slang, Decoded

Phonetic spelling of how 'Jesus' actually leaves an Irish mouth when used as an exclamation. Drawn-out vowel, faintly softer than the blasphemous version, deniable in front of your nan. Used for surprise, disbelief, exasperation, mild horror — basically any reaction you'd have to news.

A joint, abbreviated to the initial letter. Sometimes just written 'J'.

Its flexibility is the whole point — one word covers thing, that, it, and more.

Slang for troops posted in remote desert areas, likened to the desert scavengers of Star Wars.

To splash, spatter or slop about; a 'jaup' is a splash.

Slang for a car (and in some Latino usage, a house or place); regional.

The heavy feeling of having eaten far too much. Also spelled 'hartura'.

A big feast or the state of being stuffed after eating too much. '¡Qué jartera!' = I'm so full.

Alcoholic drinks, especially pints of beer.

How locals say Jarrow — the shipbuilding town on the south bank of the Tyne. Same vowel-flattening that turns Newcastle into Newcassel. Used in everything from postcodes to football banter.

Slang for a US Marine, originally from the high-and-tight regulation haircut that makes the head look like a Mason jar — shaved sides, flat lid on top. Some accounts trace it instead to the old high-collared dress blue uniform making the head look like it's sticking out of a jar. Used by Marines themselves, by other services (sometimes cheekily), and burned into pop culture by Anthony Swofford's 2003 memoir 'Jarhead' and the Sam Mendes film.

Not the real thing. Dodgy market trainers, snide perfume, a Rolex that ticks too loud — all jarg. The Scouse word for everything that fell off the back of a lorry.

Added to the end of a sentence to soften a request, brush something off, or add a casual, familiar tone.

From market culture, where a seller adds a small top-up to a purchase for goodwill; now used broadly for any bonus, extra, or freebie in daily life or content.

Originally meant fleeing or escaping quickly, and has become the standard word for emigrating from Nigeria, especially among young professionals seeking opportunities overseas.

The January effect is the observed historical tendency for stock prices, particularly small-cap stocks, to rise in January, often attributed to year-end tax-loss selling reversing. It is a seasonal anomaly.

The act or scene of hanging out; a night out with friends. Noun form of 'janguear'.

To hang out or spend time with friends; a direct Spanglish borrowing. Also spelled janguiar/hanguear.

Freshwater shrimp or crayfish, often peppered and eaten as a snack.

Mild Irish exclamation of surprise, exasperation, or mild alarm. A minced oath — designed to swerve 'Jesus' and avoid the sin of blasphemy in a Catholic country. Sometimes extended to 'Janey Mack, me shirt is black' as a bit of doggerel. Very old-school, more grannies than teens these days.

The universal New Zealand word for flip-flops or thonged rubber sandals worn in summer.

The turkey vulture (John Crow); figuratively a despicable, scavenging person.

Very lucky, often by a fluke rather than skill.

Having a great time, especially dancing and enjoying music at a party or fête.