To quickly dismiss someone in a heatedargument and interject your own opinion, totally ignoring what the other person is saying.
Person 1: Well I think that it's really a good idea to-
Person 2: Yeah, yeah, well anyways, we really need to
focus on something important like...
Person 3: Wow person 2! you're great at steamrolling, person number 1 looks totally discouraged and dejected.
When two grown men, especially Juvats, take their clothes off and roll around together naked, whether in bed or on any other flat surface. The male (Juvat) initiating naked steamrolling is the only one required to be naked, and will usually "steam roll" another sleeping male victim. This male victim (Juvat) may also choose to get naked once he realizes what is occurring. Naked steamrolling will typically progress into tummy sticks.
"Did you hear those Juvats naked steamrolling each other last night?"
"Yeah, but that wasn't nearly as bad as the tummy sticks and butt darts that followed."
When you(a male) and a preferably another male(for the muscle) either clothed or naked, roll on the ground with each other, each trying to roll over the other. When naked some call it sex, but i like it.
"Wow, Corey, you steamrolled like twelve guys yesterday, plus those two elementary school kids. Thats like a record or something, you should get a trophy for that!"
When a guy and a girl have sex in a shower with the water on full heat. Sometimes using shampoo/soap, but always hot enough to cause the entire room to steam up.