One who has a nose resembling that of John Lennon's. This type of nose often has a "pinched" appearance and is extremely flat, long and pointy.
Guy 1: "Hey man, how are you and ____?"

Guy 2: "We broke up a while ago. Her pointy lennonose was a safety hazard in our relationship."

"Damn, that guy has a serious lennonose - the pointiest I've ever seen!"
by chlohayy March 26, 2013
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