scrotum sack
used to describe a person, it is essentially were the testicles are stored but if empty is useless hence the meaning of uselessness
you as helpful as a kick in the scrotum sack
saggy stinky scrotum sack
Pretty much self explanatory but it’s a derogatory name to call a guy who is an ass.
He’s such a saggy stinky scrotum sack!