mull:

verb (used without object)

1. to study or ruminate; ponder.

verb (used with object)

2. to think about carefully; consider (often followed by over ): to mull over an idea.

3. to make a mess or failure of.

前一阵子看了电影Wanderlust，是Jennifer Aniston和Paul Rudd演的喜剧，非常搞笑。里面Paul Rudd演的男猪脚就用到了这个表达用法：

看到0:24时是他使用这个词组。好吧我承认，后来另一个人（Justin Theroux演的）说的那句话更搞。。。

"You should stay" .. "Just suck on it for a while."

"We'll mull it over."

"Suck on it."

"You never hear that at Embassy Suites, do you?"