Shortened slang for "legendary", or, more commonly, for "legend".

the whale tail is the shape formed when a g-string rides up high over a womans trousers

Short for Legendery, is some thing is good, excellent or fun it is "Ledge"

an expression also short for legend, used to describe a fantastic person.

A legend in the making.
An individual who is on the verge of a legendary status.
Showing appreciation to someone due to a favour.
Note: The word 'Legend' is often over used for individuals who are truly not worthy of the title. Using the word 'Ledge' can be a more meaningfull fit, without taking anything away from the person.

A name give to a young lad after he helped a lady find her lost children.

Ledge, a noun, short for legend, refers to someone who's just done something so astonishing that they'll be remembered as "that cool dude/dudette/duderino that did X." I.e., an absolute madlad.