- plural noun the testicles. In northern Indian languages gooli means pellet or pill. The word was picked up by British colonial troops at the turn of the 20th century as a euphemism for testicle. This sense was reinforced by a more circuitous route; the gypsies’ language, Romany, also adopted the Indian word gooli, from which the English and Australian schoolchildren’s word ‘gully’, for a marble, derived. Marbles itself was a common euphemism for the testicles.