Though I was born and raised in the US I'm 1/2 Filipino and have visited the Philippines several times. There is a custom there called "Tabo" and it pertains to washing your hiney after doing the do.

Toilet paper is expensive there and often you won't find any in peoples houses, let alone public loo's. Sometimes, if you are lucky, a spray nozzle like on your kitchen sink will be attached to the plumbing but most often there will be a long handled cup or dipper and a bucket of water. The idea is to use your hand (left hand?) to wash up and then wash your hands afterward with soap.

If you see a long handled cup in a Filipinos bathroom you can be sure they are practicing Tabo.

http://www.associatedcontent.com/article/782151/tabo_the_toilet_paper_alternative_in.html
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