a group of women all fucking the same guy, like several types of food all on the same stick, hence, slut kabob.
"Look, there's those girls who are all sleeping with john!"
"I know! They're like, a total slut kabob"
When your dick is long enough to go through 1 or more sluts and 2 or more sluts are on it.
Jonah’s Slut-Kabob was crazy at the party last night !