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1.
a girl that's different looking
Person 1: is she hot?
Person 2: well... she's unique looking...
Person 1: so... she's a slug monster?
by Crispy Coco April 08, 2008
 
2.
i) a general analogy for all things terrible and horrendous in nature.

1) ripping someones shit out by sticking your arm elbow deep in their face is a type of "slug monstering".

2) If a child is vampiric then by law you must axe their throats. This is another manner of slug monstering someone. Or SM'ing their shit.
by Kade/Sarah February 18, 2008