It's a dirty hole at the back end of the 'intimate masculine area' into which men of a certain disposition may receive (for purposes of corporeal gratification and relief of pent-up guilt) a hard cock and/or some milky hate. You already know what it is, don't you? FROM EXPERIENCE.
"Stick you filthy mackerel up my dirty 'man bunce', you musclebound Russian sailor"
by trashcanglam March 11, 2005