Actual Meaning:

adverb: for what reason or purpose.

adverb: (with reference to a reason) on account of which; for which.

exclamation:expressing surprise or indignation.used to add emphasis to a response.

noun: a reason or explanation.

My Definition: noun: Something I say when a fellow human or other creature is being stupid.

(Example: *Someone just yelled out in the middle of the moment of silence, "I want a bagel!"* I reply with. "Why? Man. Why?")