Flossing: Clean between (one’s teeth) with dental floss
Flossing：用牙線清潔牙縫
美國俚語的意思：
Flossing: Behave in a flamboyant manner; show off
Flossing：引人注目；炫耀自己
Examples:
例句：
You better quit flossing before i bust you so hard in the teeth.
你最好在我揍你之前停止炫耀了。
Once he got the new car, he couldn't help but floss.
他一有了新車之后就無法停止炫耀了。