Pink Lunchsack Share definition Flag A sex act in which a sandwich is inserted into the vagina post-coitus, and then taken out and eaten. I gave that girl a pink lunchsack last night, it tasted soooo good, bro! Pink Lunchsack by GKz January 17, 2013 0 0 Get merch Get the Pink Lunchsack mug. Buy Now — $32.95 See more merch