When you have overdone the drink/drug intake and have lost consciousness, only regaining consciousness to vomit or threaten to projectile vomit upon passers-by who mock your personal status.
The method of swooning the female into submission by implementing a mobile communication routine that allows conversation to become more interesting by only conversing bi-daily, thus completing the task above.
A two day hangover, is just that a hangover that lasts for two days. A common symptom of older amateur drinkers, trying tokeep up with younger more professional drinkers.
A Jew, usually reformed but he or she can also be conservative if they go to a large enough temple, who only goes to temple for the two days of Rosh Hannah, though occasionally they may show up for Yom Kippur (although the fasting impairs socializing). They usually spend the most of their time socializing outside with their friends.
"I didn't even know Michael went to this temple!"
"Oh you didn't know? He's been a two-day-a-year-jew since his Bar Mitzvah."