1blot 
/ˈblɑ:t/ verb
blots; blot·ted; blot·ting /ˈblɑ:t/ verb [+ obj] : to dry (something, such as wet ink) by pressing a piece of cloth or paper over it
▪ Don't rub the wine stain. Blot it dry with a paper towel. ▪ Blot your lipstick with a tissue.
▪ Don't rub the wine stain. Blot it dry with a paper towel. ▪ Blot your lipstick with a tissue.
blot out [phrasal verb]
blot out (something) or blot (something) out : to hide or block (something): such as a : to make (something) difficult to see
▪ Clouds blotted out the sun.
b : to try to forget (an event or memory)
▪ blotting out memories of your childhood
▪ Clouds blotted out the sun.
b : to try to forget (an event or memory)
▪ blotting out memories of your childhood
blot your copybook
Brit, informal : to harm your own reputation
▪ The star football player blotted his copybook by using bad language in an interview.
▪ The star football player blotted his copybook by using bad language in an interview.
