A fork of Rural Dictionary
Dick-sucking lips. Describes full, soft, larger-than-strictly-necessary lips that one can assume would be best suited to sucking dick.
Anon: Guys, can you help me with this drawing? He looks way too feminine for some reason. :/
Critic: He's got DSL, bro.
1) Your crappy, expensive Internet connection
2) Dick sucking lips
(works for both definitions) Damn, that girl has DSL. I'd love to use that to connect to my equipment.
DSL's are full, luscious lips that engulf your weiner with little to no trouble at all.
When I first saw those DSL's, the first thing that came to my mind was "Can I stick my dick in your mouth?"