1. In England, joints are rolled with tobacco to help them burn. The tobacco leaks tar, which can cover and burn the smoker's lips and fingers. A roach, in England, is a small piece of cardboard, often torn from the pack of rolling papers, which is rolled and placed into the mouthpiece of the joint. This makes it easier to hold and also makes it possible to smoke the entire joint without the aid of a roach clip.

2. In America, people tend not to smoke joints using tobacco, and what is called a roach in England is termed a filter in America. The roach is the end of the joint which cannot be smoked without a roach clip, because the smoker's fingers would be burnt. The roach contains the most resin and is stronger than the rest of the joint because THC smoke has passed through and settled on it with each inhalation. A roach is often saved and smoked in a joint made from other roaches, which is much stronger than a normal joint.

1. The end of a joint.
2. (British slang) The bit of rolled-up cardboard you put at the mouth-end of a joint.

A dirty person. Someone who smells bad,and likes to be shirtless in public this person comes from slums/ projects. Basically a dirty wannabe thug.

Most think they're funny

The small bit of marijuanna and brown resinated paper left after smoking a joint. Can be used to make second generation joints made from all roaches, smoked during times of dryness, or saved for a pipe.

The part that is left over from a blunt of a joint. It can be saved for a pipe or bong or used to make a new blunt/joint.

the end of a joint, can be eaten or saved. Contains the most resin

A small, cone shaped, rolled up strip of cardboard which is placed at the mouth-end of a joint, often made out of the little flap on rizla boxes. A roach serves various purposes, it;
- Stops your weed fallin out
-If someone bums it (slobers on the end) it stops the soggy paper from falling apart
-It gives your spliff a standard cone shape, which is almost impossible to achieve without a roach

The end of a joint, usually made from cardboard. The cardboard usually comes from the green card that is used to support the packets of cigarette papers, the packet itself or whatever club flyer happens to be handy. It derives its name from the derogatory term used for the grunts of the mexican army, "La Cucaracha" which means "the cockraoches", because, as part of their payment they eached received quantities of mariijana.

La cucaracha, la cucaracha
Ya no puede caminar
Porque no tiene, porque le falta
Marijuana que fumar.

(The cockroach, the cockroach
Now he can't go traveling
Because he doesn't have, because he lacks
Marijuana to smoke.)

1. A pesky vermin insect that infests your house.

2. In many places a roach is a burnt joint, usually but not necessarily the very last end, it can be halfway finished and still be called a roach, the principle being on that it has already been smoked from.

3. Roofies, R2s, rohypnol, pills that can be used to get fucked up on usually with alcohol, or in many cases used as a date rape drug, effects can last for hours, with the user remembering little or nothing.