a gummo is when you hire a prostitute and bash her teeth out and make her suck you off while vomiting
will: "duuuuuuuude jaxson just told me he got lucas's mum to give him a sloppy gummo!"
jack: "ew"
guy with a bbc and likes dick up their ass and loves doing the digby brown
man look at marty hes such a matikudza