A type gym short popular before the 1990's. They have very short legs and are called dongouts because of the fact that instead of using a fly you can simply position your junk through the leg so urination is possible.
My mom bought my dad a pair of real gym shorts to replace his pale green dongouts he has had since the early 80's.
When someone acts immature in a serious conversation. Also dinglenuts can be used to describe an individual who manages to screw everything else up for the rest of us.
Conversation: That Austin is such a jerk during physics, he is such a dinglenuts.
Physical Example: That dinglenuts opened upthe side of the plane and decompressed the cabin.
A Dingnut is a young female woman that would be considered Loud, Spontaneous, and very funny. However even if the chosen recipient is all of the matching, they can't be called a Dingnut unless they enjoy Spongebob.
"Bro, that Dingnut over there is hot!"
"She's a Dingnut? I'm happy there is someone that enjoys the lore behind the Spongebob universe as I do."
"Indeed my compatriot. She is quite exotic."