The backstory is refreshingly unglamorous. This is a track born of boredom and bravado rather than boardroom strategy — the product of a friendship struck up at a house party with producer Tolu, a university mate who happened to know his way around a sampler. That the beat carries a Westside Gunn sample only sharpens the sense of lineage: this is a young Londoner reaching across the Atlantic for grit and texture, and finding it.

What lands hardest on first listen is the sheer nerve of the thing. TEMERITY doesn't ease the listener in with a hook or a chorus built for playlists — he simply starts talking, and doesn't let up. The wordplay is dense, occasionally reckless, and entirely unbothered by whether you can keep pace. His own favourite line — "you ain't hit the bottom of the barrel till you looking at the bottom of my barrel" — is a neat piece of internal rhyme dressed up as swagger, the kind of couplet that rewards a second and third listen once the initial punch has worn off.

Recorded, by his own admission, in a single take and with a drink in hand, the track has the loose-limbed quality of something caught rather than constructed. That looseness is the record's great trick. Where so much UK rap of the last few years has been sanded down and radio-polished until the edges disappear, "Off the Leash" keeps its rough seams showing. You can hear the neighbourhood in it — literally, given where it was cut — and that grounding gives the bars a weight that pure technical dexterity alone wouldn't earn.

None of this is to overstate the polish. TEMERITY is plainly still finding his voice, and the record's charm lies partly in that unfinished quality — the sense of a rapper working things out in real time, sample by sample, line by line. It is not a flawless single. It is, however, an honest one, and honesty is in shorter supply than talent on the UK scene at the moment.

Tolu's production deserves its own mention. The beat is spacious enough to let the vocal breathe, but the low end has just enough menace to keep things tense — a producer clearly listening closely to his rapper rather than simply handing over a instrumental and hoping for the best. Together they've made something that feels like the first chapter of a much longer story rather than a stand-alone statement, which, given how many unreleased collaborations the pair apparently have stacked up, seems entirely by design.

"Off the Leash" won't be for everyone — its confidence borders on confrontation, and its rough edges are a feature, not a bug. But for anyone keeping half an eye on where London rap goes next, this is a name worth filing away. TEMERITY sounds hungry, unpolished, and — crucially — entirely his own.