In his youth, he was practically rolling in money

Rohit has <u><em>bitten off more than he chew</em></u>.

To beggars description

The politician was able to sway the mob with his <u><em>gift of the gab</em></u>.

To blow hot and cold

When the police came, thieves <u><em>took to their heels</em></u>.

To have one's heart in one's boots

To throw down the glove

To hold something in leash