To work one's tail off = To work very, very hard
To gain muscle, I work my tail off in the gym.
Into the limelight = To be the center of attention
Mr. Kan has become the new prime minister, and with that he steps into the limelight.
Imprudent = To act without thinking
It is imprudent to cross the street without looking both ways.
Exhilaration = Very, very happy
Mr. Honda's goal sent Japan into exhilaration.
To pal around with = To associate with or to be friendly with
The guys I used to pal around with when I was younger are now very fat and very bald.
To have a fancy for = To like or to be pleased with
I have a fancy for vanilla 'Super cups' in the summer.
Cramazing = Something so spectacular that it seems crazy
It would be cramazing if Hideki Matsui joined the Tigers next year.
Beaucoup bucks = A mixed English and French slang word which means a lot of money
I would like to return to America this year, but that would take beaucoup bucks.
By heart = To know perfectly
I have used the Dwyer method for 30 years. I know my method by heart.
Rejuvenate = To seem young again
A long jog in the morning is enough to rejuvenate me.