Redsack 

A Toy with Red hair, good for nothing espicially graffiti

Rio; Just Red Heads aka Redsack

Redsack by Kiloe June 19, 2009

redbacked 

When you are fucking her doggie style, get a nose bleed and pour blood onto her back.

The air here is so dry I redbacked this whore while pounding her from behind. Oops!

redbacked by Bizz Jizz September 4, 2016

Redsock stimulator

To punch the partner during anal or vaginal sex in the side to induce groin tightening. Usually done from behind so the partner will be surprised and cannot anticipate such action. Once your partner has tightened up that's your opportunity to go to town or pull out during anal sex to induce a red sock to even the loosest of sluts.

Jimmy: I was railing out this hooker the other day and I paid $100 extra for anal.
Danny: Damn was it worth it
Jimmy: At first it was like throwing a hot dog down the hallway but than I gave her the old Redsock stimulator.
Danny: You've made me proud little bear.

Redsock stimulator by A simple man w/simple pleasure December 8, 2013

redback 

An extremely venomous spider found in most regions of Australia. The spider most often associated with Australia

"Johnny got bitten by a redback and was rushed to hospital."

There was a redback in the pantry

redback by UginDaSpireeDragon September 30, 2015

Boston Redsock 

When a woman's (or man's) rectum prolapses during anal sex.

Just as I was pulling out of her ass to blast it all over her back, she blew a Boston Redsock about the size of a filled water balloon back at me.

Boston Redsock by The Gone Lunman March 26, 2009

Santa's Big Red Sack

Preferably done around Christmas time. You go out and find a virgin, pop her cherry, and then paint your sack with her blood.

Hey Tom, this chick let me do Santa's Big Red Sack with her last night. It was awesome.

Santa's Big Red Sack by JayTree January 19, 2008

redback 

a high quality beer originating in western australia that has an aftertaste of banana and is favoured by australian women, but enjoyed on the whole as it is incredibly awesome.

customer: "can I grab a pot of redback, please, waiter?"

redback by tiny dancer July 4, 2004