What exactly does "taste my lime" mean in the phrase "salt me, lick me, then taste my lime"?

Answer 1

It comes from the ritual involved in drinking tequila. The ritual involves licking salt, drinking a shot of tequila and then sucking a lime wedge. This eventually led someone to invent the "body shot" -- there you lick someone's neck, sprinkle salt on it, then lick the salt, drink a shot and then suck on a lime wedge that the other person has in his.her mouth.

Answer 2

Lime being a body part, you can take it from there.