Noodle leg refers to a "noodle" in the swimming pool, where you would put it between your legs, like a penis. A penis with very long length but very minimal girth.
Also refers to a long needle dick, thin dick, pencil dick, wire dick etc.
yo baby tyrone, you got a noodle leg man, are you lacking girth dawg?
With the noodle leg! (Do it, do it, do it!)
Now do the noodle legs! (Snap!)
Now do the noodle legs! (Yeah!)
Now can you give me seizures while I'm bustin' a nut?"
(I love tha pussy - Alpa Chino)