A dump so powerful that one feels the need to yell out "MEGA DUMP" as it's coming out. Frequently is an out of water experience, resulting in a dry docked dump.
Dude, did you hear Sean lay out a MEGA DUMP a few minutes ago? He clogged the toilet with just shit, not even any toilet paper. That guy needs to modify his fiber intake.
by Big Status February 9, 2009
Get the Mega Dump mug.