According to residents, peaceful worshipers emerging from the Rifai mosque came under fire as they chanted a slogan calling for the fall of the government, a slogan uttered from Tunisia to Bahrain.
Less than a week before Israel will celebrate its Independence Day, Palestinian children held posters showing Israel's flag crossed out in red, with a slogan calling for the country's demise.
Then, in the 60s, some bright spark dreamt up an advertising slogan called I'm Backing Britain.
A current slogan calls the Lake Champlain Valley "New England's West Coast". In a way it is - a west coast on a 435-square-mile inland lake with a panorama of the Adirondacks of New York and the Green Mountains of Vermont facing each other across its cool, blue width.
As they danced and sang together, calling for an end to the violence that has brought fear to some communities here, a group shouted: "This is for Mandela!" Another chanted "Mayibuye iAfrika" - an old slogan calling for the revival of Africa.
Scores of people attending the event, however, chanted an apparently choreographed slogan calling him their leader.
A plaque on his office wall from members of the agency association offered a tribute that appropriately paraphrased a well-known old advertising slogan: "Call Harry, he'll know".
When asked whether it was "time to stop feeding the Caucasus," an increasingly popular nationalist slogan calling for Moscow to cut off the region because of the gilded lifestyles of people such as Ramzan Kadyrov, the thuggish leader of Chechnya, who is known for collecting luxury cars.
#RefugeesWelcome campaign spiked online last weekend after supporters in a number of German football stadiums unfurled banners with the slogan calling for donations to refugee projects.
Miss Cleo's slogan "Call me now!" may soon give way to a generation of psychics asking you to Skype them.
