stair fail 

when someone is walking up or down the stairs and they badly predict where the next step is causing them to miss the step and fall down provoking laughter to the person behind them.

that was the best stair fail ive ever seen!

stair fail by Blahblahwhogivesafuck February 19, 2010

missing stair

Missing stair is an analogy for a person within a social group who many people know is untrustworthy or otherwise has to be "managed", but who they work around by trying to quietly warn others rather than deal with openly.

A term coined by blogger Cliff Pervocracy.

Yeah, everyone knows about that person isn't safe to be around, they're a real missing stair.

missing stair by ceolyn September 23, 2019

Samantha Stair 

The most amazing and sexy beautiful person you will ever meet. beautiful dirty blonde/brown hair, amazing gorgeous eyes. All boys will encounter her and love her but only a lucky few will date her. She is a bad girl but pulls it off just right. She is funny, nice and the most AMAZING girl you will EVER meet. You want to be friends with a samantha stair. She has the most slim and beautiful body, and she is very nice. Samantha Stairs are very popular and witty and they can outsmart anyone in a second. She defeats mean girls like nothing ever happened and walk off talking to her friends. Everyone wants to be like her, but no one can pull it off. She is brave and fearless and has many personalities and loves the brightest blues and greens.she thinks good, positive thoughts, destroys anyone thats mean or gets in the way of her happiness by there weakness. You get weak around her. You will want to be perfect around her. You want to be a samantha stair.

guy 1: Who is that beautiful girl and who are all those boys trying to talk to her?
guy 2: Thats my crush and her fanboys, Samantha Stair

Samantha Stair by Yaaasss slay homies February 27, 2017

air stair 

When you step on a stair that is not there

I fell because I stepped on an air stair

air stair by supsauce November 3, 2013

Stair Master 

Doggystyle Intercourse on top of a flight of stairs, when the male knocks out the feemale's arms and rides her the entire way down.
Also see bobsled.

Nicole will be eating through a straw for a few weeks because i gave her the stair master.

Stair Master by Josh Aussems March 25, 2005

S.W.F. (Star Wars Freak) 

A freak who likes Star Wars. All of them are named Robert or most of them.

Robert Skene is a star wars freak.

S.W.F. (Star Wars Freak) by Xavier Fiset April 29, 2005

Stair Wit 

It is the feeling you get when after something has happened you think of all the things you could have said.

It originates from the french phrase 'L'esprit d'escalier' litterally translated as 'Wit on the stairs' meaning the feeling you get when you fall down the stairs you think of all the witty things you could have said but didn't.

* Ellie sees Max, her crush walk past *
Ellie: "Hey Max"
Max: "Oh hey Ellie, how're you?"
Ellie: "I... I..." *is unable to form words at the sight of Max*
Max: "Well it was nice seeing you..."
* Max walks off *

Ellie: "Damn Stair Wit! I could've at least asked him how he was or something!"

Stair Wit by Intelligable Rambler August 15, 2011