noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A self-harm cut that reaches the dermis. Internet

   "John has a styro on his left arm."

2. 2
   The dermis itself. Internet, figuratively

   "I think I hit my styro."

Example

More examples

"John has a styro on his left arm."

Etymology

Clipping of styrofoam, referring to its similarity in appearance.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.