When having anal intercourse and accidentally using gasoline instead of KY as a lubricant causes it to ignite under the intense friction, and subsequently blowing your dick out of the ass with flames shooting out of the ass from the buildup of methane under pressure. Anything within six feet downrange of the asshole is destroyed.
Doctor: Well how did THAT happen?
Patient: I was so excited my girlfriend let me have anal intercourse that I didn't notice I used gasoline to lubricate the situation and the resulting reverse dragonblast scorched my cock.
Doctor: Yes, it happens more than people think. I suggest that in the future you place the gasoline in a more appropriate container, perhaps one of those fucking impossible to use safety cans with the vent in the nozzle that everyone hates.
When you have an erect peen. Run up on your unsuspecting S/O, pull your pants down and yell "RYUUJIN NO KEN WO KURAE" while moving hips back and forth. Repeatedly hitting them with your peen from multiple angles.
v. int. The act of pushing one's face in between an Asian chick's two ample breasts, and rocking one's head side to side very rapidly while making a vigorous, lip-vibrating "brrr" sound.