What is Alien Jizz?
1.
When you get a green liquid mess such as kiwi juice, pea soup, wheat grass shot, etc. on the front of your nice, clean, starched shirt.
Bob: "What the fuck is on the front of your shirt?!"
Sue: "It's alien jizz... after being anally probed, the Martian men decided to use my shirt as a cum rag, tastes delicious!"
See