Pansy-snook is someone who is so annoying/obnoxious, you want to smack them as soon as they enter the room.
offensive an effeminate man.
snook 2 |snʊk| |snuːk|
noun (in phrase
cock a snook) informal chiefly
place one's hand so that the thumb touches one's nose and the fingers are spread
out, in order to express contempt
Man, that Gunther kid is such a pansy-snook, I can't stand him.