A device used to insert the tip of your penis when an occurance of burning is experienced.
Real world example: A memeber of your family has placed a timer based airfreshener ontop of the toilet tank. During a 3am piss this goes off onto you exposed penis causing a sudden burning sensations. In an effort to stop such burning you use a cup filled with water to place the tip of your penis. Hence known as a bell cup.
by f33rf1y January 21, 2012