Unleash a vulgar double entendre on innocent bystanders with this hummers are for dicks funny joke t-shirt.  The Hummer is a ginormous sports utility vehicle that is generally driven by penises, such as Arnold Schwarzenegger, who happens to own several.  Not only are the men who drive Hummers dicks personality-wise, they also try to compensate for their lack of genitalia by driving large, expensive vehicles.  The worst thing about the Hummer epidemic is that most of the penises that drive them never leave the city in their gas guzzling monsters, which are actually designed for the back country. 

The other meaning of this hummers are for dicks funny joke t-shirt is a bit more risqué in nature.  A hummer is more than your usual blow job.  When a friendly, large-mouthed member of the opposite sex gives you a hummer, she actually hums while your wiener is encased in her oral cavity.  As a result, your Johnson vibrates and is further stimulated.  So, if you’re both a fan of this fancy oral technique and an opponent of that oversized gas guzzling vehicle known as the Hummer and the dickwads who drive them, wear this hummers are for dicks funny joke t-shirt with bravado.