bukbuk₁ 1n Any of various varieties of boring insects or weevels which invade and chew wood, bamboo, grains or beans. 1.1n The powder or dust from woodboring insects. 2n One or more varieties of weevel which invade rice, corn or flour. 3n Anything invaded by weevels, as rice, corn or flour. 4v To shake something out of a container such as lime or talcum powder or salt from a salt shaker.