When one completes a bowel movement that is of such a length that one end extends above the surface of the water in the toilet bowl resembling the ubiquitous grainy photo of the mythical Scottish Leviathan.
I just ate 90 chicken wings. I bet you twenty dollars that tomorrow's morning dump will be a chocolate Loch-Ness.
by shitty wizard February 27, 2011
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The name given to every other man's penis.
I don't care if your dick is the size of Loch Ness. If I haven't seen it, it ain't there.
by sukebe November 19, 2006
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The reason why the dinosaurs are extinct. see also:
Loch Ness Monster
The Great Wall of China
The Equator
God

Dillon:"what are you up to tonight?"
Me:"not getting eaten by your schlong"
by Zak Hill May 7, 2008
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The Loch Ness Monster is a winged creature that is reputed to inhabit Loch Ness in the Scottish Highlands.

Most people think that the creature has descended from a line of long-surviving plesiosaurs. Its description changes between different 'sightings' and there is no one accepted form, but it is commonly thought to be highly intelligent, have a long neck and wings.

Often referred to as 'nessy'.
Loch Ness Monster, Scotland
by nessy2 March 5, 2011
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(noun)- a turd of mythical size. The base stays hidden in the bowl, while the head is the only thing that is seen. If you do not snap a picture of it....people may never believe it happened.

In addition to its length, circumference, and overall gargantuan stature, these often become what are also known as "bowl stainers." Leaving behind a mess that...well...isn't human.
Brother: Dude, I just took a two foot bowl stainer and no one was home to see it.

Other brother: I don't believe you.

Brother: Damn! Another Loch Nessie Messie....
by Lat 5 July 31, 2011
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Loch Ness Monster is the alternate form of the FrankenMaggie This creature is so large it has a BD. Which scares most Men. The Loch Ness Monster is very scary and fat and ugly. Stand to close to a Loch Ness Monster and you might get butt fucked by it's cankles.
OMG. That Loch Ness Monster's Cankle just went up my ass.

Oh GOD! That Loch Ness Monster is actually FrankenMAGGIE!
by ASOBFAN June 29, 2004
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a living, breathing, membrane(member) that sometimes gets irritated, in other words, extended.
He calls it the loch ness monster.
by megida March 14, 2008
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