Fig. having good fortune; in a very good situation, especially financially. If I get this contract, I'll be in clover for the rest of my life.I have very little money saved, so when I retire I won't exactly be in clover.
Prosperous, living well. For example, After we make our first million, we'll be in clover. This expression alludes to cattle happily feeding on clover. Slightly different versions are like pigs in clover and rolling in clover. [c. 1700]