What is Dsal?
1.
Dick-Sucking Ass-Licker, used for a male who has just broken up with a girl because they never liked her in the first place. Or because they started liking someone else and never showed up on dates, or cancelled repeatedly at the last minute.
Emily: Oh man, that guy's such a DSAL. Jessica: Yeah, I heard he broke up with Sarah because he started liking that other chick and kept ditching Sarah at the last second.
See