Teukkake is what happens when first year German language students feel the need to spit constant consonants in your face. Typically coincides with excessive Kraut-rock abuse and a misplaced sense of cultural superiority.
"God-damnit, Heinrich, stop spitting in my face and put your Rammstein away! F-ing Kraut-smoker!"
"Yeah. Heinrich? That's not even his name, it's Humbert and he blew a Teukkake all over my face when he found a Blur album in my car."