It’s something people say to fill in an awkward space. It really doesn’t have any real meaning but if you don’t know what to say Op is the way to go. Also it’s just an Ohio thing
by RealHotGirlSh*t August 31, 2019
Get the Opmug. by MinocquaFuck May 31, 2021
Get the Opemug. by Twight0931 March 18, 2017
Get the Call of Duty: Barack Opsmug. In reference to the eponym game, it usually means that you want to make you partner in liberty asshole wider.
by Leoxis February 29, 2024
Get the Op on Helldiversmug. 

