Ukay-ukay

It is synonymous with the ilocano verb wagwag, an act of dusting off a piece of clothing by taking hold of one end and snapping it in the air, and shaking the item to dust it off; and SM, meaning segunda mano (secondhand), which is also a pun on the foremost Philippine retail chain SM.

[1] The term wagwag was more commonly used in the early to late 1990s as this type of business originated in the Baguio City which later on spread to the Cordillera Administrative Region and to the rest of northern Philippines.

Eventually, it reached the National Capital Region and the rest of the Philippines through Cordilleran traders led by the Colod Family of Baguio City.

When calamities frequented the Philippines during that year, the various global branches of the Salvation Army sent secondhand garments and other goods to the refugees and victims as humanitarian assistance.

4653, also known as the "Act to safeguard the health of the Filipino people and maintain the dignity of the nation through the prohibition of the importation of used clothing and rags".