Someone who appears totally normal until they go in for a kiss. Then their mouth becomes strange and down-turned, their chin becomes wrinkly and their puckered lips don't quite touch but instead just awkwardly expose their teeth.
karen: How was your date with Chevaps last night?
Lindsay: Oh man, it was good until he went in for a kiss and turned all Toney Pompano on me.
Karen: OOOOOOHHHHH DEAAAAAARRRRR... let's get you to sanitation services immediately.