First thing that comes to your mind.

[Zirat]

Voodoo

(Makes sense to those who read the MSPA intermission)

 

[Best of the 3]

Baron Samedi.

 

[Troublesome Lagomorph]

Haiti
Sons of Samedi

 

[BoosterGold]

Sam I Am

 

[kikon9]

Sons of Confederate Veterans

 

[Troublesome Lagomorph]

The Confederate States of America

 

[Scde2]

Point Lookout.

 

[Best of the 3]

He masturbates with his left hand.

EDIT (Yup, that was the first thing that came to my mind)

 

[Scde2]

My left foot.

 

[Best of the 3]

Pulling my leg.

 

[kikon9]

Giggity

 

[Scde2]

 

[Zirat]

Abomination

 

[BoosterGold]

Beholder

 

[AwesomeExpress]

Spoiler

 

[Rune342]

Kobold.

 

[BoosterGold]

Instant kill

 

[Dr.Susse]

Poisoned wine.

 

[VuvuZelaMan]

Booze

 

[Scde2]

Drunk.