[footfootfoot]

Here's a small list, I have to check my Slang dictionary at home.

blower – cake hole – cock pocket – cotton mouth – cum dumpster – gob – grill – hatch – hatch, the – pie hole – skull cave – trap – word hole – yap

Because I am pedantic I need to point out that we are not looking for euphemisms, but slang terms. A euphemism is an inoffensive word standing in for an offensive one. e.g. poo is a euphemism for shit.

/pedant