Potato wagon

Small bikini-type underwear, or a thong, for well endowed men. Similar to a banana hammock, but bigger

He could barely stuff his junk into that potato wagon

Potato wagon

This is a “curse” word that a child could use. Although it has a rather derogatory meaning, potato wagon is something a kid could say and nobody would bat an eye. Obviously grown ups can also use this.

Potato wagon is used to indicate that a teacher, most likely an elementary teacher, has a humongous behind.

*In a setting where children are present*

Parent A “So I went to the parent-teacher conference right.”
Parent B “Did it go well?”
Parent A “It did, nothing was wrong although the teacher had the biggest potato wagon i’ve ever seen before!”
Parent B “Was it really that big?”

Parent A “It was! When they turned around there was like an after effect of force and I almost flung backwards.”