Fucking one person, and then another immediately after. Coined by Kyu the love fairy from Huniepop 2: Double Date.
MC-kun: Can I perhaps interest you in some sloppy seconds?
Kyu: Aww, you KNOW I love me a messy mulligan!
Kyu: Aww, you KNOW I love me a messy mulligan!
by realgamergrill February 13, 2021
Get the messy mulliganmug.