Unusually tall (maybe fed miracle grow as a child) and skinny.

who says lanky is an insult? it's a compliment. most models are lanky: tall and skinny. a lanky walk, run, or dance is the best thing you could see. lanky people rock. most of them are really cool. lanky people look good in almost anything too and they could get away with anything they wear. they are on top of the world and everyone looks up to them :)

tall skinny kid with long dangly arms, long stride,

Someone who has relatively long yet thin arms and legs. A lanky person is often tall and thin.

Definitely not neccesarily an insult, although like most words it can be used as one if the low-life insulting another person is that stupid. Mostly used as an amusing comment or nickname. Disproportionately tall and thin, especially referring to long arms and legs.

someone who is tall and very thin, often used a a nickname or slaging term

guy:hey lanky, wats up
lanky : not much

also used to refer to someones appearance in a conversation.

"damn that tiarnan McCarry is lanky"

Philip Tan