smack one's lips

“吧唧嘴”：smack one's lips；“抠鼻屎、挖鼻孔”：pick one's nose；“打饱嗝”：burp；“打喷嚏”：sneeze；“放屁”：fart，pass gas, pass / break wind, cut the cheese(较粗俗)；“打呼噜”：snore； “打哈欠”：yawn；连续打嗝（即呃逆）：hiccup； 喝汤吃面时发出的“丝啦”声是：slurp