To ask someone "why do you suck so hard?" is a sexual pun that refers to oral sex sarcastically, while generally implying that the person just REALLY emphatically sucks.
When you work so so very hard in life, and people tend to not give a shit. Therefore giving you a small pay after you barely killed yourself for them..
Term used to describe feelings of extreme frustration, annoyance and irritability. Often used by an angry person when woken up in the middle of the night by their neighbours persistent and loud spooning.
Example 1:
Dude 1 (playing FIFA 10 on Playstation): Ohh! I told u to shoot soft and it went over the bar....WHY U DOING SO HARD!!??