mick·ey 
/ˈmɪki/ noun
plural mick·eys /ˈmɪki/ noun [count] informal + old-fashioned : a drink of alcohol to which a drug has been added to cause the person who drinks it to become unconscious
▪ Someone tried to slip him a mickey. [=tried to knock him out by giving him a drugged drink]
▪ Someone tried to slip him a mickey. [=tried to knock him out by giving him a drugged drink]
take the mickey (out of someone)
Brit, informal : to make fun of someone
▪ Did you mean what you said about me or were you just taking the mickey? [=kidding] ▪ We took the mickey out of her [=we teased her] about her new hairstyle.
▪ Did you mean what you said about me or were you just taking the mickey? [=kidding] ▪ We took the mickey out of her [=we teased her] about her new hairstyle.
