I don't know what a lond is

Literally everyone, ever. Including the writer of this definition.

A lond is a mix between a lake and a pond. Usually too small to be a lake but to large to call a pond.

also 10ND or 10enD

1.expression of extreme joy
2.adjective cool, great, awesome, elefuntastic, etc.

What a Blonde Fills out in forms, when she gets to the difficult question.
"Hair Colour"

a lond is a person who goes to a show and gets right in the crowd and then gets pissed off and trys to fight everyone when they get pushed