n.
The act or an example of repeating mindless cliches or sayings that do not even make sense in the context.
A common Hornerism is
*sighs* "Man, I'm up to my elbows in alligators and busier than a one armed paper hanger in a pile of quicksand and that is, is the bottom line."
This would only be a Hornerism if the person who said this just got back from a 2-hour lunch with perspective "customers" who just happen to amount to no business.
"The January 2006 Federal election results in Canada unexpectedly yielded a minority Conservative Government. The 'great moving right show' is having yet another run. In Prime Minister Stephen Harper, Canada now has the most ideologically committed neoliberal in power since Margaret Thatcher. The five priorities Harper has announced - an accountability package; a cut in the GST; a market-based childcare system; a law and order agenda centred on sentencing; and a reduction in healthcare wait times through increased delivery flexibility - all reflect these commitments. These proposals are embedded in the overall strategic priority of aligning Canada even more tightly with the US through increased overseas military commitments and further economic integration. Canada's move into southern Afghanistan and increased troop deployment is already sketching in the new terrain. The major boost military spending, tax cuts and marketized public services proposed in the first Harper Budget on May 2 filled in more details. This constitutes the initial agenda of Harperism. It could hardly be more pressing for the Left to take some stock of what the Harper government is and might become." {Greg Albo, "Figuring Out Harper" (8 May 2006) zcommunications.org}
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.