Top Definition
It is the act of grabbing your penis and putting the bottom part of your nuts on a girls vagina and take a dump on her from her vagina till you get to her head, then you drag your butt back and smear the poop while making a dysfunctional beeping noise. Extra points for farting while in "reverse" because it is like pollution from the top of a Dysfunctional Steamroller.
Brad: " Hey Ben what did you do this weekend?"

Ben: "Well, i got drunk and finally did it!"

Brad: "Did what?"

Ben: "The Dysfuntional Steamroller."

Brad: "Did you pollute too?"

Ben: "Yep"

Brad: "Up top ben"

(High five slap)
by Maczofri January 20, 2011
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