“Hummer ” in Urban Dictionary usually means an oral-sex slang term , not the vehicle. It can also refer to the Hummer SUV in a separate, literal sense.

Meaning in slang

Urban Dictionary’s entry describes a “hummer” as a blowjob where the giver hums, creating a vibrating sensation. That’s the most common slang meaning people mean when they ask this question.

Literal meaning

It can also simply mean a Hummer vehicle, the large civilian SUV based on the military Humvee.

In plain language

So, depending on context, “hummer” may mean:

  • a sexual slang term for oral sex.
  • a large Hummer vehicle.

TL;DR: In Urban Dictionary, “hummer” is usually slang for a blowjob with humming, but it can also mean the Hummer SUV.