A term coined by the band blur used to describe people who smoke heroin, particularly those addicted to the practice. The term comes from the dotted black residue left behind on tin foil sheets after use, often called "beetles", hence the phrase "chasing the beetle".
An evil insect infiltrator of the most digusting variety. Known to crave the dregs of stale beer, it will lay its eggs in your mouth when you sleep. Thus, if it flys at your face, you know it's feeling frisky.
1."Dude, you need to brush your teeth. It looks like someone laid a mo'fo beetleroach in your throat."
2. "In the span of the last 4 hours, I've caught a huge mo'fo' beetleroach (in my mouth), killed at least 12 small insects, and collected a gigantic grasshopper that decided to roast itself on my ceiling fan's light."