The Vietnamese word "bẻm" is an adjective that describes someone who is glib or smooth-tongued. This means that the person can speak very easily and persuasively, often in a way that might seem insincere or overly slick.
While "bẻm" primarily refers to someone who is glib, it can also imply a certain level of superficiality in speech. It does not generally have a positive connotation; instead, it often suggests that the person might be trying to deceive or manipulate others.