Romulan Grapefruit Share definition Flag Having sex while watching Star Trek and you Vulcan Neck Pinch the other person's boob. I gave her the good ol Romulan Grapefruit last night and both their tits went to sleep. Romulan Grapefruit by Bagofhotdogwater May 5, 2019 0 0 Get merch Get the Romulan Grapefruit mug. Buy Now — $32.95 See more merch