Two stepping

An act of hardcore dancing where boys in tight pants do a lowsy sort of can can

Are you sure he's two stepping?

two weeks

When you're out with your friends and you see a really obese girl/woman nearby, instead of saying to your friends “look at the size of that fat ass over there” which isn’t exactly subtle, you say “Two Weeks” and look in the direction of the target fat ass.

If they’re much larger than your average ‘two weeker’ you start with “two weeks” and then someone else might say “four weeks” and this repeats until you get to a period of time you all agree on.

“Two weeks” comes from the film ‘Total Recall’ In the film Douglas Quaid played by Arnold Schwarzenegger returns to Mars inside a robot fat woman suit. Arriving on Mars the robot woman’s head malfunctions and starts repeating the phrase “Two Weeks” before exploding.

“Check out two weeks over there”

“More like six weeks”

“No way, that’s four months”

two of spades

A double slap of the male genitalia forming the shapes of spades on each cheek.

Sally said "Oh my god, you gave me my first two of spades, I've always wanted to get a card tattoo!".

Two Bob

An insult, basically a polite way of calling a person a cunt. Referred to in The Libertines song "What a Waster".
To give it a continental feel can be translated in German to 'Zwei Mark'.

"Oi get 'ere you Two Bob!"

Low Two

Two butt cheeks intentionally smacking into another set of butt cheeks. Usually celebratory, like a high five. But instead of a high five it is a low two.

To initiate a low two for the first time or any time, simply declare, "low two!" Once you turn your backside towards your friend, they will understand the premise and clash cheeks with you.

After winning a point in spike ball, the two teammates celebrated with a low two.

Two for Forty

When two strippers are fighting over you at the club for a $20 lap dance and you don't want to be rude and you think fuck it lets do both at once.

Chris couldn't work out which stripper to get a lappy from. He pondered should I take Jade or Jaguar? Fuck it two for forty.

If you're horny, let's do it
Two for forty
My saddle's waiting
Come and jump on it

two sider

A woman who looks hot as fuck from behind, but when you see the front she's ugly as fuck.

Kinda like a butter face but you can say this in front of the person.

damn did you see that chicks ass she's hot! Nah man she's a two sider.