n.
Function: transitive verb
Date: before 12th century
1 a : to overspread with something unctuous, viscous, or adhesive : DAUB < smear ed the paper with glue> b : to spread over a surface
2 a : to stain, smudge, or dirty by or as if by smearing b : SULLY , BESMIRCH specifically : to vilify especially by secretly and maliciously spreading grave charges and imputations
3 : to obliterate, obscure, blur, blend, wipe out, or defeat by or as if by smearing
– smear · er noun