A spoken slang for BTW, meaning "by the way", which originated on the internet. Rather than say "bee-tee-double-u" out loud, people began saying "bee-tee-dubs", which became "btdubs" when translated back to the internet.
A sweet and affectionate term for a loved one (generally male). A Bubsy is some one you can always count on, trust completely and love unconditionally. The one your meant to love, be best friends with and cherish.