flossing
noun [ U ] uk/ˈflɒs.ɪŋ/ us/flɑː.sɪŋ/
(TEETH)
用牙线清洁（牙缝）
the practice of cleaning between your teeth using dental floss
Regular flossing is essential for healthy gums. 经常用牙线清洁牙缝对保持牙龈健康有必要。
(BEHAVIOUR)
US slang刻意引人注目（或仰慕）
behaviour that is intended to attract attention or admiration
Stop your flossing - nobody cares about your clothes.