He has just gonged, no doubt to order another buttered tea-cake!
c.1600, from Malay gong, probably imitative of its sound when struck. As a verb from 1903.
[second sense fr television Gong Show, where performers were dismissed by the sound of a gong]
[both senses probably fr gong, ''saucer-shaped metal bell,'' of Malayan origin; the sense ''opium pipe'' may be related to the general association of gongs with Chinese matters, and the military sense to the notion that a decoration is something like the ceremonial sounding of a gong]