This was one of several screen names, all of which seemed to derive from the word 'reb', short for 'rebel', the mascot of Columbine High School. In this case, the 'domine' is based on the Latin 'dominus' for master.
When you go to a car dealership, with a ton of unsupervised and unlocked cars... (Specifically Reedman Auto World) and have lots of crazy sex in said unlocked cars.
I stopped at a car dealership today with my girlfriend and pulled the reedman when the sales person walked away...
or
Hey man, I pulled the reedman today... What do you mean? I mean i fucked your mom in a Tahoe when she took me car shopping.
Dude, you are soo *VVVVVVVVVVVTTTTTTT* (trying to imitate a vacuum cleaner) <---this dude obviously can't dis. he was trying to say someone is gay, but ended up looking gay. So he practices reetomism