That sounds to me like an insulated cup, thermos cup, travel cup, (disposable) styrofoam cup, etc. If it doesn't have a handle, it's not a mug -- but surely it's also not a tumbler, which to me is a heavy, tall glass (made of glass) designed for beverages with ice cubes (which could cause thinner glass to crack).
dude's guess in #3 about the proper name for the social media site could be right, who knows, though it doesn't make much sense to me in this context.
Or it could be just some kind of intended (lame) joke on tumbling things, turning things topsy-turvy, upside-down, shaking everything up.
Whatever it is, if it's from Breitbart, it's guaranteed to be offensive and tasteless, so let's not give it any more publicity.
Or rather, who speaks Russian? Surely there are some oligarch bootlickers who would like to order several cases of these useless things as a gift for someone higher up in the hierarchy. They could resell them at the World Cup, if the civilized world can't get it moved to a more respectable country.