Part of the comedy in animations is exaggeration for effect. Whatever your character is, it always does a little too much in its actions.

1. Imagine a character that uses this technique. Someone throwing, jumping, , or would be great example of this. 
• Superheroes are great examples of this in the way they jump, fly, and land. 
• A sports figure like a baseball player, or a foot ball quarter back would show this very well.
• A vehicle in a crash might be used to display this technique, too.
2. This technique is, in a lot of ways, the other end of anticipation. 
• Anticipation involves exaggerated action at the start cue you that something important is about to happen. 
• Follow through helps you see that something significant has just finished.
3.  The Spiderman trailer attempts the same thing but at much higher speed. Watch for it closely. You'll see this in most superhero animations.
4. The original Spiderman series using this technique a fair bit if you start to watch it closely. It's a bit cheesy in how it's applied but it's there.
5. The Princess Bride, though not animated, uses Follow Through as well. A real sword fight, with the wild slashes done in this one, would leave you very vulnerable to attack. The way the fight is carried out is almost certainly for effect.
6.  Take a character you imagined.  Create a short clip of about 5 seconds (60 frames) that uses follow through and overlapping action.
• The "character" doesn't necessarily need to be human, but could be a vehicle in a crash, or maybe a yo-yo on the end of a string. There's lots of possible, non-human applications for this technique.
• Imagine how the character's body - whether their arm, legs, torso, string, bumper or whatever, would change and bounce back and forth.
• Would there be compression? 
• Speed changes?
7. Be zany. Have fun. Don't hesitate to be a bit crazy with this.