OK, Joe let me shed some light on the language barrier so that you may use these terms in your homestate with confidence.
Trunz: (proper noun) this is derived from 18th Ave. meat market of the same name. It refers to a truly foul aroma. ex. The car smelled like Trunz.
I'm sure when the Nebraska pigs take a brunz it probably smells like Trunz.
Brunz: (noun) this is not the act , but the actual contents of the bowel movement. So the proper context is not "I brunzed", but instead "I had to take a brunz", or as Joe Fatone Sr. would say I need to go the the Brunz Room. Legend has it John has dropped brunz in 300 different Manhattan public restrooms.....and left quite a few smelling like Trunz.