Nappitizer is the nap you take right before bedtime.
Dob took a nappitizer on the couch after the big game and then woke up to go to bed for the night.
That feeling you get in your pants when you see a beautiful woman. When your junk moves at the sight of a fine piece of ass.
Bro, did you see that girl walk by in that sundress....She gave me a serious case of the Bonerflies!