look up any word, like dirty sanchez:
 
1.
ass,asshole,digestive tract
"check out the cornpump on that babe"..."hot foods will burn your cornpump"
by steve June 04, 2004
 
2.
unwanted,useless item or person
"the cornpump was for sale,but I wasn't buyin'..." "...some cornpump took my seat at the bar"
by steve June 04, 2004