Roach is a versatile slang term. Depending on the context, it can refer to the rolled filter (tip) at the end of a joint – or the short stub that remains when the joint is almost smoked.
The Two Meanings of Roach
In German and international usage, "Roach" is used in two ways:
- The filter/tip – the rolled cardboard filter at the mouthpiece of the joint.
- The stub – the short end piece that remains after smoking.
Both meanings are common – the context usually clarifies what is meant.
What is the Purpose of the Roach (Filter)?
As a filter, the roach gives the joint stability, keeps crumbs back, and ensures an even draw. It is rolled from a narrow strip of cardboard – more on this under Rolling Paper Tips.
Frequently Asked Questions
Is a roach the same as a tip?
In the filter sense, yes – roach and tip then refer to the rolled cardboard filter.
Why is the stub called a roach?
The term has become established through slang; its exact origin is not clearly documented.
Does a roach filter out harmful substances?
A cardboard roach primarily provides stability. For real filtration, an activated carbon filter is needed.

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