a) When your farts are already at a deadly level but it's as if your fart came to life and died again and leaked out of your butt hole.
b) When your fart lingers in an area, driving a person(s) away from that area, and when they come back, the fart is still there. (also known as a "double-taste")
a) Chris: I just farted.
Isaac: It's okay, i did too.
Chris: Holy crap, dude! I've been drinking protein shakes all day and ... ahhh!.. what the hell is wrong with your butt hole!?
Isaac: I dunno. They're pretty deadly, huh?
Chris: No man, your fart came to life and died, like a double-death fart!
b) AHHH! Who farted!?! **everyone leaves**
**everyone returns moments later** Oh My God! Why is that fart still here? I had to taste it TWICE!
A sexual act involving two men. Man no. 1 grabs man no. 2's forearm, which is holding his own dick, and swings it in an anticlockwise motion so that man no. 2's dick is spinning like a skipping rope. Man no. 2, at an alternate sync, grabs no. 1's forearm and spins it anticlockwise from his own perspective, creating a double dutch movement. As this is happening, both men are attached at the neck by a rope. Both ends are knotted into slipknots and respectively placed around each man's throat. As the men lean away from eachother, the knots tighten and produce erotic asphyxiation. The act ends when both men cum, one passes out, or their dicks are too injured to continue.
Person: Yo, did you hear what happened to Matt and Liam? They tried to perform the Double Dutch Rudder of Death and ended up in the hospital with bruised dicks. Crazy shit, man.