1.Aggressive pick up line, before drunkenly making out with someone

2. A reference to a Llama, El Paca or any other packing animal of the Andies.

The shorthand version for expressions like "because of" or "because I am".

Made popular thanks to sites like Twitter, where brevity matters; now often used jokingly or ironically, even in regular conversation.

Abbreviated use of the phrases "because of (noun)" or "because it's (adjective)"

Famous quote spoken by mountaineer George Mallory in response to the question: "Why do you want to climb Mt. Everest?" It symbolizes the basic human desire to strive for the unachieved, whatever the legitimate purpose is. Mallory would go on to die on Everest, forever to be remembered as a man unafraid of death, frostbite, or the Yeti.

A word that all parents can't live without. It has no real meaning.

The most terrible of motives and the most unanswerable of responses

It means whatever the person wants it to mean. It's a reason for everything.