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1.
An alteration of "rofl" created by the greatest CSS player of all time NoobasaurusRexos33
"That movie with the myspace chick made me ride in the roflwagon."
by nooobbbiiieee April 12, 2008
 
2.
A vehicle transporting 2 or more nerds.
Man, I can't believe we're going to this party rollin the roflwagon son.
by Zack Alv March 25, 2008