Double backwards 

Walking swiftly out of the venue while--facing forward--you extend both arms behind you with your middle fingers extended.

The Double Backwards means that my boy got disrespected at a breakfast meeting, so he stood up and gave them the double-backwards.

Double backwards by dewsteve March 11, 2015

Kill me backwards 

Kill me backwards is a Hawaiian slang for "that's unfortunate" or simply just "fuck"

Some extentions include,

Kill me backwards to china
(when something is probably very bad)

Kill yourself backwards
(when you feel bad for a friend either because they are going through things or simply just because they are unfortunate)

Person: *trips over*
Person: ahg kill me backwards

Person: *gets into a tricky situation *
Person: kill me backwards to china

Person 1: I tried to kill myself yesterday...

Person 2: kill yourself backwards, do you need help?

Kill me backwards by UwU user May 7, 2019

ass-backwards 

adj. - wrong, abnormal, negatively unique, against the norm (the norm owns mee)

Why do anything the normal way when we can do it ass-backwards?

ass-backwards by Joe March 20, 2003

fall backwards 

to fall backwards means to have lots of pleasure aka sex

I will fall backwards onto her to get some sex.

fall backwards by Thatsnotahandle! July 20, 2016

poop backwards 

To poop backwards is defined as the act of receiving anal sex.

"Damn that chick has an ass that just won't quit!"

"Yeah! I'd like to teach her how to poop backwards!"

poop backwards by elemkay May 20, 2008

say it backwards 

1) The ultimate comeback. Unbeatable if used correctly.

"...and Africa is a continent, so basically, everything you've said is bull and only a tree would believe it!"
"Say it backwards, Howard."
"What? What's that supposed to mean?"
"Say it backwards."
"...uhh..."

say it backwards by stevie September 14, 2003

arse-backwards 

1) Very wrong.

2) Right (rare usage)

1) "... It's a privilege to have people listen to your views, and if people get them arse backwards sometimes, that's the price you have to pay ..." -- Alexei Sayle, comedian, satirist and Young Ones co-star, after apparently dissing his home city.

2) Bill: I put my trousers on arse-backwards today.
Ben: Well done. That's correct.

arse-backwards by Mathilda Underfoot April 11, 2010