There, a reptile. Here, an insect.
Roach clip: archaic slang for this device used to hold “the roach”; the tiny butt end of a marijuana cig.
A 1970s artifact.
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I graduated HS in the 80’s and we called them “roach clips”. I still do. Alligator clips still seems weird to me. But couldn’t use any old clip. Some were too strong and crushed Mr. Roach....so I was told. LOL