Top Definition
The worst kind of sexually-transmitted disease you can possibly get.

It's a mixture of Gonorrhea, Syphilis, Herpes, and the Clap.

Pronounced: Gone-a-sif-a-herp-a-clap

It is also customary to clap once when somebody says this
Man 1: Dude, that girl is a total slut...she freaking gave me Gonnosyphiherpeclap.

Man 2: *Claps hands once*

Man 1: What the fuck was that for?
ayon kay jewboy11505 ika-05 ng Mayo, 2009
5 Words related to Gonnosyphiherpeclap

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