More commonly called 'The Junn', Junntrithicusis is the proper name for a speech impediment in which a person mumbles their words in a disjointed and monotonous manner.
Junners are Jeans and Runners. Worn by people who have no sense in fashion or can't afford some dress shoes to go with jeans.
It was so embarrassing when I was bagging out people that wear Junners (jeans and runners) to my friend and I look over and her dad is wearing Junners. Awkward.