Sidewards Taco 

Envision a taco full of horrific horse meat and mouldy salad. This terms pertains to the nastiest and most beat up of all vaginas out there, imagine a cross between Hitler's grandmothers corpse after it has been passed around a pack of hyenas and Tara Reid's snatch after a solid 4 hours of horse riding, minus the saddle. Safe to say the very entrance to hell is more welcoming a sight than a sidewards taco

David Cameron: Ohh bro I totally hooked up with Paris Hilton last night, but as I was going down to rainbow kiss her, I realised she had the worst sidewards taco ever and I had to bail!

Stalin: Bro that's weak man, why would you even think of going down on Paris?

Sidewards Taco by IceMan 22 GO DEEP June 19, 2013

Sidebar pour 

A ridiculously excessive pour. Specifically when ordering a drink on the rocks.

Specifically used by hipsters and residents of Austin, Texas

Man. I don't get it, I've had two Bushmills rocks and I'm wasted.

Dude, what do you expect, you're drinking SideBar Pours.

Sidebar pour by Johnny Games October 21, 2009

Sideyard

To engage in lewd sexual acts or "hook up" with a person on the side yard of a house.

Nick: "Yeah I sideyarded this chick last weekend. We unleashed our bodies on each other. It's was awesome and shameful at the same time."

Sideyard by TayGuns November 16, 2011

sidebar t-shirt ad boobs 

There always are huge boobs on the chick wearing the t-shirt with a stupid slogan in the sidebar page of urbandictionary. The boobs are big enough its worth staring, but the t-shirts are never funny enough to click the link.

probably just look in the side bar of this page

or

"wow, that t-shirt is so dumb only a hopeless loser would ever buy it. but check out those sidebar t-shirt ad boobs!"

sidebar t-shirt ad boobs by wastedhillbilly December 30, 2011

Rape the Sidebar 

On facebook, when one goes on a liking spree or becomes a Comment Crasher just to bombard the sidebars of their friends.

Courtney was so drunk last night she decided to rape the sidebar and annoy all of her friends

Rape the Sidebar by The Bro Network October 31, 2011

sidebar 

A public request for a private conversation or meeting usually employed when in the company of others. The announcement of "sidebar" is intended to prevent others from interrupting the conversation. Comes from the O.J. trial.

Scott pulled Julie out of the party and into a sidebar to, drunkenly, confess his undying love to her.

sidebar by fsudustin April 20, 2006

Sidewards 

1) to turn both sideways and backwards
2) To turn sideways except cooler

"I just turned my head sidewards and it was rightside up"

Sidewards by zexsudel October 20, 2004