Horseshoe vortex 

The horseshoe vortex system is a simple vortex model for an aircraft or lifting body which fits a box-shaped vortex system out from the wing. This is made up of the wing vortex, trailing vortices (see trailing vortex) and starting vortex. The latter is a vortex formed due to changes in the vorticity of the wing vortex, i.e due to changes in airspeed.

I can't honestly think of a good example for you. Sorry

Horseshoe vortex by victorhadin December 7, 2003

Horseshoe retardation 

When you're so retarded it becomes based

Person 1: ''If it was WWII right now, and the US would be fighting against Nazi Germany and Imperial Japan, you would support the latter two?''
Twitter user: ''Since I oppose the US, yes.''
Person 2: ''Wow, you have horseshoe retardation,''

Horseshoe retardation by Resterez May 29, 2021

ice the horseshoe

When you poop on the horseshoe shaped rim of a public toilet.

There's a greasy log on the toilet rim in the McDonald's bathroom...did you ice the horseshoe?

ice the horseshoe by EM Riggles February 27, 2009

The Horseshoe 

Nickname for Ohio Stadium, where the Ohio State Buckeyes play home football games. It has a cpacity of over 105,000 people and is called simply "the shoe" by most Ohioans. The stadium is shaped like a horseshoe, thus the reason for the nickname (though the open part now has seats and a huge scoreboard).

This year the Ohio State/Michigan game will be played in the Horseshoe, and the Buckeyes will probably win.

The Horseshoe by osu fan August 8, 2006

golden horseshoe 

A large urban and suburban region of Ontario, Canada at the western end of Lake Ontario. It stretches from Niagara Falls, Ontario around to Oshawa, incorporating St. Catharines, Hamilton, Mississauga, and Toronto, as well as their adjacent areas. At present, it is home to approximately 7.5 million people. It is the most populated and prosperous area in Canada, which is the source of the "golden" part of its name.

905 is the area code for the Golden Horseshoe (outside of Toronto, with the area code 416).

golden horseshoe by avgfhadsfkjbvhadsfjhbv September 12, 2006

Chattanooga Horseshoe

Chattanooga Horseshoe

A large amount of chewing tobacco placed inside the lower lip from end to end, resembling that of a horseshoe in shape.

"Jim Bob, it sure is a long drive from Chattanooga to Knoxville. I'm gonna need a Chattanooga Horseshoe to get me through this bitchin' drive."

Chattanooga Horseshoe by mattdebeach November 30, 2018

Jimmy's horseshoe 

Late-stage male pattern baldness in which a substantial sphere of bald flesh is circled by an increasingly dissipating ring of hair, often forming a "horseshoe" shape.

Colin Mochrie was long known for flaunting his Jimmy's horseshoe on set.

Jimmy's horseshoe by instaphammed February 22, 2022