Reviewed & updated August 23, 2026

What Is the Clap? Gonorrhea's Famous Nickname

Quick answer

The clap is gonorrhea — a bacterial STD infecting genitals, throat and rectum, with roughly 600,000 reported US cases yearly. The 700-year-old nickname's origin is murky (possibly Old French 'clapier,' meaning brothel). Modern facts matter more: resistant strains limit treatment to one ceftriaxone injection, many infections stay silent, and retesting after treatment is mandatory.

Why 'the clap'?

The slang predates Shakespeare. Leading theories:

Whatever the etymology, by the 1500s English texts already used it — making gonorrhea one of medicine's most enduring nicknames. A cousin term survives too: 'the drip', describing its signature urethral discharge (discharge guide).

The modern germ and its resistance problem

Neisseria gonorrhoeae has earned grim respect as an antibiotic-resistance champion — having defeated penicillin, tetracyclines, fluoroquinolones and azithromycin sequentially. Current US first-line therapy narrowed to ceftriaxone 500mg intramuscular injection, single dose, with oral azithromycin dropped from routine regimens in 2020 guidance.

601Kreported US cases 2023
~50%per-act transmission efficiency from infected women
1 shotcurrent standard cure (ceftriaxone IM)

The throat matters disproportionately: pharyngeal gonorrhea acts as a resistance laboratory where gonococcus swaps DNA with harmless Neisseria species — which is why throat swabs belong in every relevant panel.

What it feels like — and when it says nothing

The retest rule everyone skips: CDC advises test-of-cure around 2 weeks post-treatment AND full retest at 3 months — reinfection rates run high enough that guidelines assume round two unless proven otherwise.

Testing uses urine NAAT plus site swabs; cure takes one appointment. Full logistics: how tests are done, treatment overview.

Frequently asked questions

What is the clap std?
Gonorrhea — a common bacterial STI treatable with a single antibiotic injection.
Why do they call it the clap?
Likely from Old French 'clapier' (brothel). The folk tale about 'clapping' the penis to expel pus is almost certainly legend.
Is the clap curable?
Yes — but resistance narrowed options to ceftriaxone injections. Always complete follow-up testing since reinfection and rare treatment failure both happen.
Can you have the clap without symptoms?
Yes — especially women, throats and rectums. Silent carriage drives transmission cycles.
How long after exposure do clap symptoms appear?
Typically 1–14 days in men; women often never notice. Testing beats waiting regardless.

Sources & further reading