kisser
noun
[ ˈkɪsə ]
• a person who kisses someone, especially in a particular way.
• "he's a good kisser"
• a person's mouth.
• "I belted him one, right on the kisser"
Origin:
mid 16th century: from kiss + -er1. kisser (sense 2) (mid 19th century) was originally boxing slang.