Plecostomus 

A woman whose vagina smells like fish, and sucks a lot of dick.

I'm not saying she's a whore, but her mother was a plecostomus.

Plecostomus by Hazerdous August 13, 2016

placostamus 

A prefix for a vegan's first name as a descriptive of his/her eating choices. Not to used as a dis, but a term of endearment.

placostamus mike is on his way to tofu king for lunch. or - Placostamus Zack likes to eat gack.

placostamus by Teddy Teligincia July 23, 2003

plecostomistic 

ple'cost'o'mystic
name taken from the pleco fish. They suck algae from water.

-It is supposed to discribe someone greedy, sucks in money,eats alot, etc.
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there is also "plecostomystice" which is a magical pleco.

Person 1: "My job is so plecostomistic, they won't even let me eat free, or let me have any discounts."
Person 2:"Man that sucks."

plecostomistic by Amanda Mae February 16, 2007