When you havent blown a load in a week and you empty your balls on to your girl's landing strip. Then proceed to curl her stache using your jizzum as wax
Chris: Hey man, did you have fun with your girl last night??
Josh: Ya bro! I gave her some vaginastache wax!
Chris: What the donkey balls is vaginastache wax?
Josh: I blew a fat load on her vaginastach, then twisted the ends using my jizz as wax. You know, vaginastache wax.
Chris: Oh nice! Im gonna go spacedock myself.