geezer slang definition
geezer. Drug slang A regionally popular verb meaning to inject a drug. Medspeak noun American slang for an offensive and/or dull-witted old person, especially males; in hospitals, geezer is a highly derogatory term for an elderly, cantankerous, often poorly-educated male patient.oun Medtalk American slang for an offensive and/or dull-witted old person, especially a â in hospitals, geezer is a highly derogatory term for an elderly, cantankerous, often poorly-educated â Pt verb Drug slang A regionally popular verb, to inject a drug.