Dabby
An adjective or noun derived from dab (a cannabis-concentrate dose, widespread c. 2010 with the rise of BHO extraction and dab rigs; the base word from Middle English dab, "small amount, light touch"). ⚠️ Highly disputed and under-lexicalized: dabby is not recorded in Green's Dictionary of Slang, the OED, or Merriam-Webster. Urban Dictionary entries (post-2015) variously define it as "a quick dab session," "high on concentrates," or a blend of "dab" and "daddy." Best treated as recent, informal, and semantically unstable.