Similar (sexual) terms include Casper's Tears, Spit Dicker, White Wedding, Tapioh-no!, and Toothpaste Gag.
Lieutenant: Really, Officer? What makes you say that?
Officer: See that, sir? *points to a clump of white goo on the pillow, next to drips of blood* That, sir, is pure bona-fide phlerm.
Lieutenant: What's phlerm?
Officer: Look it up on Urban Dictionary. It ain't pretty. God help the victim...