-noun a pile of shit given forth by the small oval headed kid named johnny.
-verb when you go to someone elses house and you feel like beating off from hot girls around you and you ask to go to the bathroom for more than an hour where you proceed to give yourself a blumpkin while thinking of the girl you saw. You then jizz in the toilet and shit on it, this is the roump dump
Man I went to Louis's house the other day and I swear Nick took a roump dump to Pamela!!!
Dont ever take roump dumps to Nikki cause she gets off to that!