Definition of: smear

(smir) v.t.
1. To spread, rub, or cover with grease, paint, dirt, etc.; bedaub.
2. To spread or apply in a thick layer or coating: to smear grease on an axle.
3. To sully the reputation of; defame; slander.
4. U.S. Slang To defeat utterly; overwhelm or stop.
5. To cover with smear (def. 3).
6. Obs. To anoint.
—v.i.
7. To be or become smeared.
—noun
1. A soiled spot; stain.
2. A small quantity of material, as blood, sputum, etc., placed on a microscope slide or bacterial culture for analysis.
3. A volatile flux for glazing ware.
4. Obs. Ointment; grease.
5. A slanderous attack; defamation.
6. Slang Anything to spread on bread, as butter, jam, etc. [OE smerian <smeoru grease]