The Term became popular in United States by a random kid saying it. Only on Wednesdays means that it only happens on Wednesdays.
by OnlyOnWednesdays May 31, 2012
Basically means exaclty what it sais, only on wednesdays. Created by a group in Toronto, to try and make wednesdays the best day of the week.
by TheGreatestGoon December 30, 2011
buy the domain for your cat vlog