This word is also a very popular phrase that has been widely used online for these couple years in China.
The word now means strongly recommending somebody to do something.
Usually the person who uses it personally likes the subject so much and therefore wants to share with others so badly.
The interesting thing is, the word itself actually originates from an American marketing company Amway, the sub company of which has a huge reputation for being overly persuasive when they try to sell their products in China. Then people started making fun of that company and using the word “安利” (Amway) as a verb instead of a noun to describe the behavior of strongly recommending others to try something.
Moreover, as the word has been widely spread on the Internet, it tends to mean more like “brainwash” when people use it for fun.