It's a bullet style. That's what they call it.

I'm loving Officer Shonda. Sandy Gasms gets down for her little demonstration and you can see her barely-contained glee the second the word "orgasm" is uttered and she knows she's about to arrest her. Dept. Neckbeard ID's the "bullet style" and she now has confirmation he's some flavor of degenerate. He thinks he was clever pawning the logging off on her but you just know that entry will be "One "bullet style" vibrator, as identified by deputy Neckbeard."