I Love to Laugh Mr. Wigg, is said to float because of an excess of "laughing gas", although it is clear that the term is not used in the chemical sense. So-called "laughing gas" (nitrous oxide) was one of the earliest effective anaesthetics developed in the Nineteenth century. it was popularised by dentists, for pain-free tooth extractions, as well as by showground novelty booths. Customers at the booth would be gassed and, as they were recovering from the drugged sleep they often felt euphoric and giggly. Hence the name. A famous 1931 British comedy sketch starring Cicely Courtneidge, called "Laughing Gas", was based on
Laughing falcon bite. Laughing falcon The laughing falcon ("Herpetotheres cachinnans"), also called the snake hawk (erroneously, since it is not a hawk), is a medium-sized bird of prey in the falcon family (Falconidae), the only member of the genus Herpetotheres. This Neotropical species is a specialist snake-eater. Its common and scientific names both refer to its distinctive voice. Its English name comes from its loud voice, as does the specific name "cachinnans", Latin for "laughing aloud" or "laughing immoderately". The generic name "Herpetotheres" refers to its preferred food; it is Latinized Ancient Greek, derived from "[h]erpeton" (ἑρπετόν, "reptile") + "therizein" (θερίζειν, "to