The act of fisting two people at the same time while wearing a propeller hat and singing Ariana Grande.
Man 1: Have you seen Jack and Susan lately?
Man 2: No, I heard Sam did a dirty seppi on them, they haven’t left their bed in days.
Man 2: No, I heard Sam did a dirty seppi on them, they haven’t left their bed in days.
by TatiIsNotIt May 5, 2020
Get the Dirty seppimug.