The amount of time left in a day that is completely booked, which is to say, none.
Well, I have three finals today, a baseball game this afternoon and a date this evening, so I'd be happy to read your psych paper in my copious spare time.
By Ebony
Ski On His Spare Time
Normally used when a black, or African-American individual likes white, or caucasian individuals. This is where the idea that white people are "snow" ; so when someone says "you like to ski" it is referring to liking white people in a romantic way.