On the much lighter side...
This one should be in every computer game and included in AD&D 4th addition.
Here's a spell created by Fonzie Forum Tyrant of MH in a General Discussion Thread named Evil Smiting Continued.
I was ROTFLMAO!
DEFACATION SPELL
DEFACATION
Level: Quest/10
School: invokation/evocation/toilet
Duration: Special
Casting Time :Variable
Description: The defacation spell summons 1 to 3 projectiles from the anal area of the caster, these fly unerringly towards the target (or the toilet) and hit for 3d10 Subdual smell damage. Also an additional 1 round per caster level per stick.
Can cause 1d10 extra damage if the caster summons a blade wheel, often known as a 'fan'. If a 'fan' is summoned, then the effect can act over an area of 2d4 feet plus 1 foot per level of the 'fan' summoner.
This is known as the Sh*T hitting the fan.
Fonzie this is cooler than anything I ever saw on Happy Days
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"Your right to swing your fist ends where my nose begins."