Top definition
A true mans dog. Koaltrain will always be there to protect you and defend you anytime he feels you're threatened, yet will be loving to his master above all other dogs. A dog that never needs a leash and never backs down.
That there's my Koaltrain.
by Tippinsuds February 06, 2010
Mug icon

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the shirt