Sexual slang is a set of linguistic terms and phrases used to refer to sexual organs, processes, and activities; they are generally considered colloquial rather than formal or medical, and some may be seen as impolite or improper.

Related to sexual slang is slang related to defecation and flatulence (toilet humor, scatolinguistics). References to the anal tract are often given a sexual connotation in the context of anal sex (in particular, in a context of male homosexuality).