Taken from the Jewish word 'mazzeltov', the word literally means 'luck' or 'good luck'. Use of the word crossed over to various places where Jews settled, but especially Amsterdam where it is commonly used by everyone. It is used to describe that someone is lucky or to say goodbye (lit. wishing one the best of luck), just like 'bye' and 'later'.
The feeling of over stimulation due to a variety of amazing coincidences and successful plans ending in perfectharmony.
I bought the perfect new blazer on clearance, found a hundred dollar bill in the pocket just before the cashier girl gave me her number cause she liked my smile. I later checked my voicemail to realize I got the job I applied for this morning. After I got home, I found a 12 pack of cold beer someone had left from the party last night... I'm more than good, I'm mazed out.
Mazzeltov is the only correct way of spelling the originally jewish word for "luck", or even "godspeed" if you like. Often misspelled as mazeltov, mazzletof or a combination of the two.