"H" Slang

A phase of extremely fast growth in users, revenue, or headcount.

Targeting a tightly defined local area, such as a neighbourhood.

Used as a word to express maximum hype or anticipation.

The increase in muscle size that results from training-induced adaptation of the muscle fibers.

The behavioural state — going loud, loose, deliberately rowdy. Dancing off-beat on purpose, shouting, ghost-riding cars. Bay Area's answer to crunk.

Short for 'hypoglycemia'. A diabetic emergency where blood glucose drops dangerously low — patient goes sweaty, shaky, confused, sometimes combative or unconscious. Fix is fast sugar: oral glucose if they're with it, IV dextrose or IM glucagon if they're not. One of the most common and most satisfying EMS jobs because the patient often wakes up mid-treatment good as new.

In K-pop, used to reference the older male members as a unit ('the hyung line').