Backseat martial artist 

Someone who doesn't actually practice a martial art of any sort, but loves to comment on them like their an expert. Quite similar in concept to that of a backseat driver. They tend to obtain most of their martial knowledge from internet video clips, free TV airings of fights, and sometimes they might even spring for a pay-per view match. A common favorite move of the backseat martial artists to try and perform is the armbar, which they typically learn from watching old clips of Royce Gracie and not from an actual dojo.

Once only staunch supporters of BJJ, they have now decided to extend some of their divine credibility to that of Muay Thai.

Person: What kind of kung fu should I take?
Backseat Martial Artist: Take BJJ

BMA2: Grappling is the most effective form of fighting, therefore you should definitely try to use it against multiple opponents.

BMA3: That won't work in real life, trust me I know

BMA4: Well in a real fight............... *5 paragraphs of bad spelling later*.... and thats why you should take BJJ

Backseat martial artist by Lee Gin Jet April 24, 2008

MAKING THE BEAST WITH 2 BACKS 

Sexual intercourse.

The actual expression is hundreds of years old, and was made famous by Shakespeare in Othello.

BRABANTIO: What profane wretch art thou?
IAGO: I am one, sir, that comes to tell you, your daughter and the Moor are now making the beast with two backs.

(Othello, Act 1, Scene 1).

MAKING THE BEAST WITH 2 BACKS by Dr Pinch April 12, 2005

Backseat Gaming 

The act of someone always telling you where to go or what to do while playing a video game.

"My friends are always Backseat Gaming when I play Undertale"

Backseat Gaming by UnderGirl425 November 17, 2016

backseat blogger

Similar to a backseat driver but for Internet blogs instead of cars. They leave annoying comments criticizing how someone else chooses to write their blog or criticizing what they choose to write about in their own blog.

"Hey you shouldn't write about that kind of junk in your blog!"
"What a backseat blogger."

backseat blogger by FataMorganaPseudonym January 18, 2008

backscroll 

To backscroll is to scroll backwards when viewing facebook. This is most commonly referring to when a guy or girl sees an attractive photo while quickly scrolling through and goes back to enjoy the picture.

Yo boi she is definitely your crush you backscrolled so hard when you saw her picture.

backscroll by hesus2u May 18, 2016

backslide

verb: to have sex with someone you were previously dating or hooking up with. Specifically after a falling out or bad breakup and tends to make things more complicated.

"I knew I was going to backslide with Ben last night as soon as he walked into the bar. My friends are going to kill me"

backslide by citypretty21 March 1, 2011

backasswards 

adj.

Very nonsensical... to the point of confusion.

So completely and utterly the opposite of what should be that trying to think or explain it creates a mental paradox.

His explanation of "why we are winning the war on drugs" was so backasswards that I completely blacked out.

The legal system is very structured, but in the wrong way. It is so structured that it actually hurts the very person it should try to help: the litte guy. That is backasswards.

backasswards by adumb June 11, 2006