burn your fingers

Meaning

1. to suffer as a result of doing sth without realizing the possible bad results, especially in business

   He got his fingers badly burnt dabbling in the stock market.

From the same entry

• burn your bridges
• burn the candle at both ends
• burn a hole in your pocket
• burn the midnight oil
• burn rubber
• burn to a cinder
• ears are burning
• feel your ears burning
• have money to burn
• burn away
• burn down
• burn off