noun

• Someone or something that greases (applies grease).
• (slang) A mechanic.
• (slang) A biker, a tough.
• (slang) A rocker or metalhead, especially one who listens to 1950s rock and roll or 1980s thrash metal.
• (US, offensive, ethnic slur) A Latin American, especially a Mexican.
• (US, offensive, ethnic slur) An Italian.
• (US, offensive, ethnic slur) A Greek.
• A surname from German.