Learn English – What does “throw a wrinkle” mean

Previous answers suggested that

This example ought to strike home for you

means "This example should be understood by you" or "You should immediately understand this." It's possible that's what the writer meant, but if so, the writer hasn't phrased the sentence well. It's unlikely an informed native speaker would say such a thing with such a meaning.

The fact that ngrams for strike home for you shows no usage of the phrase reinforces how unlikely it is to occur, regardless of meaning; but note that the sentence could arise naturally in dialog like

Here's another good anecdote to include in your speech. This example ought to strike home for you.

In this case, someone is telling you that including a certain anecdote in a speech will serve well to get your message across to the audience.

"To throw down" means to fight someone (usually physical). It's a colloquial expression.

Interestingly, one entry on Urban Dictionary attributes its origin to "throwing down the gauntlet" an old tradition of throwing down ones gloves to challenge someone. The person challenging the other would throw down his glove or gauntlet, and the person accepting the challenge 'would take it up'.

You also see it used in popular culture like the TV show Throwdown with Bobby Flay, which is a show where Bobby Flay challenges people to cooking competitions.