Dictionary definition · blot
noun
- a blemish made by dirt"he had a smudge on his cheek"
- an act that brings discredit to the person who does it"he made a huge blot on his copybook"
verb
- dry (ink) with blotting paper
- make a spot or mark onto"The wine spotted the tablecloth"
Source: Open English WordNet (CC BY 4.0).