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Slang Dictionary — Modern Slang, Decoded

What does that word actually mean? Our slang dictionary explains modern slang clearly — Gen Z, internet, British and street slang — with real definitions, examples and where each term came from.

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Gen Z Slangrizz, delulu, slay Internet Slangbrainrot, based, mid British Slangpeng, bare, peak AAVEbussin, finna, cap

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Latest slang terms

single jack
General
A short-handled sledge — typically 2 to 4 pounds — designed to be swung one-handed while the other hand holds a chisel, star drill, or spike. Originates in hardrock mining where a single jack miner drilled holes solo. Still standard in masonry, demo, and anywhere you need controlled heavy hits.
singing hinnie
General
A traditional Northumbrian griddle cake — flour, lard, butter, currants — cooked on a hot bakestone where the fat sizzles and sings as it hits the heat. Hinnie is the Geordie/Northumbrian term of endearment (honey). Served split, buttered, with tea.
since jesus was a corporal
General
A humorous expression meaning something has been the case for ages.
simulcast
Internet
The practice of legally streaming a new anime episode to overseas audiences at the same time as, or shortly after, its Japanese broadcast — now the standard way most fans watch seasonal anime.
simping (fictional)
Internet
Going full bad-bitch obsessed over a fictional man (or woman, or fae prince) the way you'd normally embarrass yourself over a real person. BookTok runs on it — entire accounts dedicated to one morally questionable book boyfriend. The 'fictional' qualifier exists because everyone already knows what regular simping is.
simp
Internet
Used as a light insult for being thirsty or doing too much for a crush.
simón que sí
General
Not a distinct headword; folded into 'simón'. Retained inadvertently.
simón
Street
Yes, for sure, hell yeah. A Caló embellishment of 'sí' that turns a plain agreement into something with swagger. You'll hear it everywhere from SoCal backyards to Cypress Hill records.
simkung
Internet
The feeling of your heart skipping from something adorable or attractive an idol does; roughly 'heart attack (from cuteness)'.
silky
General
Describes a player or piece of skill executed with effortless smoothness and control.
silent killer
General
A condition (classically hypertension) that progresses and damages the body before producing noticeable symptoms.
silent disco
Music
Often features multiple channels, with color-coded headphones letting people switch DJs or genres on the fly.
sigogglin
General
Describes something built or hung askew, out of alignment.
significant other
Internet
A gender-neutral, relationship-neutral term for a person's spouse or romantic partner.
sigint
General
'Signals Intelligence' — intelligence derived from intercepting and analyzing electronic signals and communications, including radio, radar, and data links.
sig alert
General
An official traffic advisory for an unplanned event that closes a lane for 30 minutes or more; used broadly for a bad LA traffic snarl.
sieve
General
An admitting doctor who lets almost every referral through, the opposite of a 'wall.'
sideshow
Street
Unsanctioned car gathering that spills out of an Oakland intersection or empty lot — drivers cutting donuts, spinning figure-eights, ghost-riding whips while hundreds film and cheer. The cultural engine the whole hyphy movement formed around.
siden
General
Off-kilter, leaning, not level. Used for pictures hung wonky on the wall, hats sat at an angle, or anything that should be straight and isn't.
side ting
General
Someone you're sleeping with who isn't your main partner. The MLE/Jamaican-flavoured version of 'side piece' — 'ting' being the all-purpose patois-derived word for a person or thing. Often used about a woman, sometimes a man, always with the understanding that there's a main relationship being kept separate.
side quest
Gaming
An unexpected detour or spontaneous mini-adventure that takes you away from what you were supposed to be doing. From gaming, where side quests are optional missions outside the main story.
side hustle
Internet
A small business or freelance project run in spare time.
side eye
Internet
A sidelong glance expressing suspicion, skepticism, or disapproval. To give someone the side eye is to silently judge them.
siddon
Street
A blend of "sit" and "down," used for the everyday action of sitting, and also forming the basis of expressions like being told to stay quiet and "siddon."