During the time of Field Marshal
Plaek Phibunsongkhram (1897–1964), gender-based naming was introduced. Names ending in "-sak", "-chai", and "-yot" were for male babies, "-
porn" or "-sri" for females.
In the 21st century, assigning nicknames still relies heavily on astrological beliefs, but also in keeping up with current naming fashions. Observers have noted such modern nicknames as "Porsche", "Mercedes", "Benz", "Man U", "Big Mac", "Internet", and "Google", among others.