someone who does not use proper urinal ettiquette when there is more than 2 stalls, he's the guy who goes between and uses the middle urinal causing an uncomfortableness.
When Hawkins went to the bathroom he decided against proper ettiquette and decided he'd become a middler.
by GabeV March 16, 2008
Can you define these popular missing words?
one who prefers to fold his penis in half during intercourse in order to get the job done.
after jimmy drank a half liter of jack, he became a real middler when trying to do his wife.
by cunt boss September 04, 2012