Tall tales accompanied by a well-defined and creative description of a particular scent.
Even as if getting a foot massage from another guy wasn't bad enough, the smell of the water was like dank underwear covered in malt vinegar. The accuracy of this muellerism was like nothing they had ever seen.
A quality or way of life involving being exceedingly innocent in reality, but saying terribly sexually inappropriate things without realizing it in front of children.
Muellerist: "Alright, class, let's look up Leda and the Swan." Class: (dead silence) Muellerist: "Oh my, why are these so graphic?" Class: "What a muellerism!"--- Muellerist with a speech impediment in a Croc's store: "Goth, theeth cocs are tho comforthabul!" Friends: "Mueller!"