Sorneras is a regional word, especially common in Colombia, used to describe women acting sly, cunning or mischievous, often with a playful or flirtatious edge rather than a truly negative one.
In "Ellas llegaron sorneras en SUV" ("They arrived slyly in an SUV"), Feid paints a picture of women making a confident, knowing entrance, fully aware of the attention they are about to attract.
Feid turns the club into a runway. "Alakran" (scorpion) is a nickname for the sharp, dangerous energy of the girls he's describing: confident and dressed head to toe in Bottega, Margiela and Louis Vuitton.
The song has no real story. It's a snapshot of a Friday night, glamorous women pulling up to the party in an SUV, skipping the VIP line because everyone already knows who they are, while the guys in the room are left chasing after them.