1) To embrace one's inner Id and throw caution and inhibition to the wind; to embrace life in all of its possibilities; to stop thinking about the future and live in the moment.
2) To hang out; party; relax; have fun with another person or group of persons.
In a sentence:
1) Did you see that new Budweiser commercial? That guy totally pieces it and ends up playing ping-pong with Arnold Schwarzenegger.
2) Let's piece it this weekend at the beach; I've already got some tenderonis lined up.
To make a living in the Bush economy with a combination of part-time jobs, freelance projects, and various other forms of self-employment.
Sharon lost her instructor position at the University, but she manages to piece it together by proctoring exams, grading for professors, translating German technical manuals, and eBaying those clay fertility pendants that she makes.