when a mans ass and nut hair intertwine with a neglected left-over piece of poo forming an uncomfortable knot.
Ian was attempting to cut out a dingle-berry, when he got a leg cramp and sliced his gooch and was rushed to emergency.
Where the cunt and the gut merge. Making a Fatty Upper Pussy Area (FUPA). Puku is another term originating in New Zealand, refering to the same fatty area.
Your tight belly button riding old lady jeans inhance your gunt.