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Used to describe a fat woman (BBW).
seacow by ast August 12, 2004
craiglist slang for any woman over 120 lbs.
I hope you blow up to seacow-like proportions and die.

what you only spend 3 hours in the gym a day? you must be a real seacow.
seacow by t-bone March 3, 2005

Slippery Seacow 

Bedding a larger woman and upon climax spilling your milk all over her and then proceeding to use her ample fat rolls as a slip 'n' slide.
" Hey Gregory, I took home a fat chick last night and had myself a slippery seacow. It was a blast!"

"My boyfriend gave me a slippery seacow last night and he slid off the bed and busted his lip!"
Slippery Seacow by rignfendo September 30, 2011

ol seacow motherfucker 

When a male takes his dick, moans like a fucking manatee, and slowly bumps his bitch. Ladies think it’s weird as shit, but nobody gives a damn at this point.
“Dudes an Ol Seacow Motherfucker. I know from experience!”
Chilean expression which means “asshole”. It can be used while you’re talking with a good friend or insulting the bitch you hate
que te pasa sacowea”
sacowea by xpapitax February 14, 2018
/si/ kou A female of large stature, most commonly identified by the presence of FUPA, Back Breast, and Dunlap vaginal disorder. many species are described as having a beard with pubic follicular likeness.

Sea Cows are predatory creatures, known for cutting in line at barbeques, spaghetti feeds and public buffets. Sea Cows are attracted by the rattle of ice in a Diet Pepsi cup or the crinkle of an empty chip bag.

Sea Cows Typically live in first floor dwellings and tend to use public transportation as automobiles tend to be tight quarters due to their large stature.
while i was in line at the buffet i was bitten by a feeding sea cow
Sea Cow by bmslyer December 2, 2011