A person who says ding a ling and penis frequently. A Xander is usually small in stature and is not liked by many. Girls find him "baby cute" because of his fat cheeks and unusually small penis.
"That kid looks like a baby"
"Yeah he's a Xander"
Or
"I slept with that kid, he has a tiny dick"
"So he's a Xander?"
"Yup"
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