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A hippo that has ceased to be hip.

Word used to describe anything that thinks it's cool, but isn't or anything that was once cool, but isn't anymore due to arrogance or a changing of the times.
Pachelbel the Panther: See Herbie over there? Think he all fly 'n shit, yawning like he don't give a fuck 'bout whether he gets mauled by Leo. He one straight opotamus.
Andy the Aardvark: Yeah, man. Think he all badass 'n cool, when he really just a bigass, lazy mo'fucka.

Hungry Hippos are the opposite of opotamus.

Bell bottoms are opotamus.
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J.A.P.opotamus 

Jewish American Princess to the 10th power. A Jewish female who is bitchy, spoiled, gold-digging, greedy, complicated, self-righteous, overbearing, selfish and high maintenance in the absolute extreme.
Don: Holy shit, Saul is marring a fucking J.A.P.

Harry: No man. He's marrying a fucking J.A.P.opotamus.
J.A.P.opotamus by Jesus J.A.P. February 19, 2011

douche o potamus 

Similar in type and variety to a "Douche Bag" only of a far heavier stature.

1. A person that is a total moron and doesn't think before he/she speaks or acts.

2a of what's cool, possibly an arrogance about them.

3. One with an intolerable personality.
Oh My Effing God, look at that douche o potamus over there acting like he actually know's what's going on.
douche o potamus by Pretty Boy January 28, 2010

douche-o-potamus 

a severe douche, a mega douchebag, one who has reached the pinnacle of douchedom, a simpleton with issues.
Tim you are annoying the fuck out of me you fawking douche-o-potamus. Buyaa!!!

Fag-o-potamus

A term used to affectionately bring attention to a morbidly obese homosexual without calling them a morbidly obese homosexual.
Did you see the fag-o-potamus convention at McDonalds?
Fag-o-potamus by razorpig September 9, 2011

lump-o-potamus 

A manager who looks like a hippo, and is as usefull as a lump of dog shit.
Who is in charge of this cluster fuck? That would be that lump-o-potamus over there sir.
lump-o-potamus by EarlK August 27, 2010

hype-o-potamus 

When a person reaches the maximum level of hype and cannot stop themselves from hyping everything up. Once at this level the person may not even know they are hyping so much.
Man, that shit is super hyped up. Look at that guy, he's a fucking hype-o-potamus!
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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