The porn video tag "dsl-dick-suck-lips" can be broken down into the following parts:
1. DSL - This stands for "Double Stacked Luscious," referring to a woman with large breasts, typically enhanced or naturally endowed with ample cleavage.
2. Dick - A slang term for a man's penis, which is the object of focus in this particular scene.
3. Suck - This implies oral sex, where one person, often the female partner, performs fellatio on their male counterpart.
4. Lips - This could refer to two things: the woman's lips (kissing or making out) and/or her mouth in general. It also alludes to the act of kissing or licking the man's penis during oral sex.
In summary, this tag describes a scene in which a woman with large breasts performs oral sex on a man's penis, involving kissing, licking, and sucking.