Southwestern Wisconsin term for someone who is full of themselves when it comes to physical fitness, usually is the biggest suck-up around their friends parents, girls, teachers, coaches, etc. Follows in the footsteps of the stereotypical Jewish person but doesn't have very good street smarts. This person is also addicted to pornography and may talk about sex quite often even though they aren't partaking in sexual activity themselves except for excessive masturbation.
As a kid in school is trying to flirt with the hottest girl by explaining how much weight he lifts another group of kids are explaining how much of a howard he is.
When an altruistic chap has blown his beans up his lady friend, but takes advantage of his last few seconds of penile hardness to generously give her a couple of extra pushes for good luck. A "little Xtra", named after bespectacled building society mouthpiece Howard off of the Halifax adverts. If the pushes are administered up the bird's dirtbox, it is called a Howard Brow, thus using the poor fellows full name for cheap comic effect.
Here comes the Howard! HNNNNNNNNNNNNNNNGGGGGGGGGGGG Who gives you Xtra!?